You are given a paragraph, a question and some answer options (associated with "A", "B", "C", "D", etc.) You need to list all the correct answer options with their associated letters (e.g. "A" can be a valid answer). Note that sometimes, more than one option can answer the question correctly and completely. In those cases, please generate all such options separated by a comma (e.g. "A, B" is a valid answer). Do not generate anything else apart from one or more of the following characters: 'A', 'B, 'C', 'D', etc.

Example Input: Paragraph- Sent 1: Honours and legacy In 1929, Soviet writer Leonid Grossman published a novel The d'Archiac Papers, telling the story of Pushkin's death from the perspective of a French diplomat, being a participant and a witness of the fatal duel.
Sent 2: The book describes him as a liberal and a victim of the Tsarist regime.
Sent 3: In Poland the book was published under the title Death of the Poet.
Sent 4: In 1937, the town of Tsarskoye Selo was renamed Pushkin in his honour.
Sent 5: There are several museums in Russia dedicated to Pushkin, including two in Moscow, one in Saint Petersburg, and a large complex in Mikhaylovskoye.
Sent 6: Pushkin's death was portrayed in the 2006 biographical film Pushkin: The Last Duel.
Sent 7: The film was directed by Natalya Bondarchuk.
Sent 8: Pushkin was portrayed onscreen by Sergei Bezrukov.
Sent 9: The Pushkin Trust was established in 1987 by the Duchess of Abercorn to commemorate the creative legacy and spirit of her ancestor and to release the creativity and imagination of the children of Ireland by providing them with opportunities to communicate their thoughts, feelings and experiences.
Sent 10: A minor planet, 2208 Pushkin, discovered in 1977 by Soviet astronomer Nikolai Stepanovich Chernykh, is named after him.
Sent 11: A crater on Mercury is also named in his honour.
Sent 12: MS Alexandr Pushkin, second ship of the Russian Ivan Franko class (also referred to as "poet" or "writer" class).
Sent 13: Station of Tashkent metro was named in his honour.
Sent 14: The Pushkin Hills and Pushkin Lake were named in his honour in Ben Nevis Township, Cochrane District, in Ontario, Canada.
Sent 15: UN Russian Language Day, established by the United Nations in 2010 and celebrated each year on 6 June, was scheduled to coincide with Pushkin's birthday.
Question: Who directed the biographical film about Pushkin, "The Last Duel"? (A) Leonid Grossman (B) Natalya Bondarchuk.
Example Output: B.

Example Input: Paragraph- Sent 1: Jack and Mackenzie wanted to do something fun during their day off from school.
Sent 2: They knew that the library had story time on Monday, Tuesday, and Wednesday.
Sent 3: Their mother told them they could go to the library every Tuesday for their story time.
Sent 4: They packed up the car and drove to the library, ready for a fun morning.
Sent 5: When they arrived to the story room, there were lots of other children their age, all sitting cross-legged and ready for the story of the day.
Sent 6: The teacher told them they would be reading "The Wild Horse".
Sent 7: She began to tell the story of Majestic, the wild horse who could not be calmed.
Sent 8: His people had tried and tried to break him, but he was wild at heart.
Sent 9: Every time they took him to the river to drink, he would run straight into the water and get soaking wet!
Sent 10: He would splash and play until he was ready to go back home, where he would sleep for hours, having worn himself out playing.
Question: When Jack and Mackenzie arrived at the library, who did they see? (A) Other children their age (B) Lots of children (C) Other kids (D) Their best friend (E) Their mother (F) Majestic.
Example Output: A, B, C.

Example Input: Paragraph- Sent 1: Renewable resources can be renewed as they are used.
Sent 2: An example is timber, which comes from trees.
Sent 3: New trees can be planted to replace those that are cut down.
Sent 4: Sunlight is a renewable resource.
Sent 5: It seems we will never run out of that!
Sent 6: Just because a resource is renewable, it doesnt mean we should use it carelessly.
Sent 7: If we aren't careful, we can pollute resources.
Sent 8: Then they may no longer be fit for use.
Sent 9: Water is one example.
Sent 10: If we pollute a water source it may not be usable for drinking, bathing, or any other type of use.
Sent 11: We can also overuse resources that should be renewable.
Sent 12: In this case, the resources may not be able to recover.
Sent 13: For example, fish are renewable resources.
Sent 14: Thats because they can reproduce and make more fish.
Sent 15: But water pollution and overfishing can cause them to die out if their population becomes too low.
Sent 16: Figure 2.16 shows another example.
Question: What is a renewable resource that we will never run out of? (A) Sunlight (B) Fish.
Example Output:
A.