In this task, you're given an article, a question which often contains a blank, four options (associated with "A", "B", "C", "D") and the answer to that question. Your task is to classify whether the given answer is correct or not by providing "Yes" or "No", based on the article.

Example Input: Article: Six-month-old babies are strictly limited in what they can remember about the objects they see in the world. If you hide several objects from babies, they will only remember one of those objects. But a new study, which was published in an issue of Psychological Science, a journal of the Association for Psychological Science, finds that when babies "forget" about an object, not all is lost. Researchers used to think that babies less than two years old did not understand that an object continues to exist when it is not in the baby's view. But in mid-1980s, new ways of doing experiments with babies found that they do, in fact, know that objects don't disappear when they do not look at them -- a concept known as object permanence. But it was still unknown what babies needed to remember about objects in order to remember their existence. Now Melissa Kibbe, of John Hopkins University, and Alan Leslie, of Rutgers University, are working to figure out exactly what it is that babies remember about objects. For the new study, they showed six-month-old babies two objects, a disk and a triangle. Then they hid the objects behind small screens, first one shape, then the other. Earlier research has shown that young babies can remember what was hidden most recently, but have more trouble remembering the first object that was hidden. Once the shapes were hidden, they lifted the screen in front of the first object. Sometimes they showed babies the shape that was hidden there originally , but sometimes it was the other shape, and sometimes the object had _ completely. Psychologists measure how long babies look at something to see how surprised they are. In Kibbe and Leslie's study, babies weren't particularly surprised to see that screen had changed, for example, from a triangle to a disk. But if the object was gone altogether, the babies looked significantly longer, indicating surprise at an unexpected outcome: "This shows that even though babies don't remember the shape of the object, they know that it should continue to exist," Kibbe says. "They remember the object without remembering the features that identify that object." This helps explain how the young brain processes information about objects, Leslie say. He thinks the brain has a structure that acts like a kind of pointer, a mental finger that points at an object.
Question: Before the study, which of the following was unclear?
Options: (A) Whether babies know objects are gone. (B) What made babies remember objects' existence. (C) Whether babies can remember what was hidden first. (D) Why babies were interested in what was hidden.
Asnwer: D
Example Output: No

Example Input: Article: This will make you think twice about dismissing the physical abilities of women. Serena Williams If know Serena Williams, then you know better than to harbor any illusions that you can take on the top female tennis player even on your best day. Nicknamed by the media as the Queen of the Court, she has won 19 Grand Slam singles titles and 13 Grand Slam doubles titles as of May 2015. By the way, she can send the ball hurtling towards your face on the excess of 120 miles per hour on her serve. Ronda "Rowdy" Rousey Former Olympic judo gold medalist Ronda 'Rowdy' Rousey has been dominating women's MMA for the past several years. She earned the nickname "The Arm Collector" for winning the majority of her fights via armbars. As of May 2015, no other female MMA has put up much of a challenge against Rousey, but some think that the next entry on this list just might give her trouble. Cristiane 'Cyborg' Justmo Many believe that Cris Cyborg will give Rousey trouble and may even have an outside chance of beating her. While Rousey is an excellent grappler owing to her judo background, Cyborg is a more well-rounded fighter with excellent standup and groundwork skills. This means that just like Rousey, Cyborg can lay some serious beatdown on you. Missy Franklin So you think you are a good swimmer. Well, no matter how good you think you are, you'll very likely still be eating Missy Franklin's pool dust. Missy is a four-time Olympic gold medalist and has also won a bunch of gold medals in the World Championships. Mirinda Carfae Do you think you can swim 2.4 miles, ride a bike for 115 miles, and still have enough gas to run for 26 miles? Mirinda Carfae certainly can and she proved that she can do it faster than any woman winning the Ironman World Championships women's division in 2010, 2013, an 2014.
Question: As of May 2015, _
Options: (A) Serena Williams was named as the top female tennis players (B) Serena Williams has won 19 Grand Slam singles titles (C) Rousey challenged no other female MMA (D) Missy Franklin won her fourth Olympic gold medal
Asnwer: B
Example Output: Yes

Example Input: Article: Just two weeks ago, I was about to cross a busy road when I noticed an old grandpa with a heavy load on his head just a few meters from me. He looked very weak. A few minutes later, I realized I'd forgotten to cross the road. And he'd seen me looking at him. I love my grandparents so much that whenever I see any old people I won't forget to smile at them. I couldn't let go of this grandpa, either. He came near me and handed me a note on which there was an address. I showed him the directions and said he would need a taxi as it was 3 pm on a hot summer's day. Anybody would faint dead in this weather and I didn't want him to walk all the way. But he looked disappointed. I asked where he had come from. He replied weakly that he was from Chidambaram, about 240 kilometers from where we were. I was shocked because he looked like he could not even take 2 steps without falling. I called a taxi immediately and asked the driver to drop him at his place. The grandpa wasn't ready because he had no money. I paid for his journey and asked the driver to drop him off safely. When I turned to look at the grandpa, who was leaving, tears filled my eyes and I didn't want to leave. Memories of my grandparents flashed in my mind, making me feel like crying. I said goodbye to the grandpa, and some happy tears dropped from his eyes.
Question: The old man that the author noticed _ .
Options: (A) was too weak to stand still (B) fell down on the road (C) had a load on his head (D) didn't know how to cross the road
Asnwer: C
Example Output:
Yes