In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.

[Q]: Article: If you saw another kid ride her bike too fast around a corner and fall down, you might ride your bike more slowly on that turn. Yes, we humans are very sensitive to others' mistakes. And the same is true for other animals. Animals mess up all the time. They might eat poisonous leaves, fall off a tree or let their prey slip away. By watching others fail, an animal can avoid making the same mistakes, thus improving its chance of survival. Scientists suspected that one part of the brain helps animals process information about others' errors. Cells in that part appear to become more active when a person sees someone else making a mistake. But researchers didn't know whether individual cells in this part of the brain play different roles in _ errors. To investigate the brain's response to errors in more detail, the researchers taught a game to two macaques, a type of monkey. One monkey could press a yellow or green button while the other watched. If the first monkey pressed the right button, the team gave both animals a treat. Every couple of rounds, the two monkeys switched roles. Meanwhile, the scientists monitored individual cells in the animal's brains. When the first monkey messed up the game by pressing the wrong button, a group of cells in the second monkey's brain fired. But if the second monkey also made the wrong choice during its turn, some of the cells in that group didn't respond. Those unresponsive cells reacted specifically to mistakes made by others, not to the monkey's own mistakes. Scientists believe other parts of the brain also might help people process information about another's errors. "You start to think about this other person and see things from his angle. " Ellen de Bruijn, told Science News. She studies the brain at the University of Leiden in the Netherlands.
Answer: others' mistakes
[A]: In the experiment mentioned, those unresponsive cells are only sensitive to _ .

[Q]: Article: Joke l: A man was sitting reading his papers when his wife hit him round the head with a frying pan. "What was that for?" the man asked. The wife replied, "That was for the piece of paper with the name Jenny on it I found in your pocket." The man then said, "When l was at the races last week Jenny was the name of the horse I bet on." The wife apologized and went on with the housework. Three days later the man was watching TV when his wife hit him on the head with an even bigger frying pan, knocking him unconscious. Upon regaining consciousness the man asked why she had hit again. Wife replied, "Your horse phoned." Joke 2: "Do you believe in life after death?" the boss asked one of his employees. "Yes, sir, " the new employee replied. "Well, then, that makes everything just fine, " the boss went on. "After you left early yesterday to go to your grandmother's funeral. she stopped in to see you!" Joke 3: "Oh, I am happy to see you, " the little boy said to his grandmother on his mother's side. "Now maybe daddy will do the trick he has been promising us. " The grandmother was curious. "What trick is that?" she asked. "I heard him tell mommy that he would climb the walls if you came to visit, " the little boy answered. Joke 4: A woman's husband had been slipping in and out of a coma for several months, yet she had stayed by his bedside every single day. One day, he signaled for her to come nearer. As she sat by him, he whispered, eyes full of tears, "You know what? You have been with me all through the bad times. When I got fired, you were there to support me. When my business failed, you were there. When I got shot, you were by my side. When we lost the house, you stayed right here. When my health started failing, you were still by my side... You know what Martha?" "What dear?" she gently asked, smiling as her heart began to fill with warmth. "I'm beginning to think you're bad luck..."
Answer: her husband's pocket money was lost without any reason
[A]: The wife became angry suddenly in Joke 1 because _ .

[Q]: Article: In 1995, Susan Boyle went to Glasgow toaudition forMy Kind of people, a televised talent show popular in the UK. She was immediately rejected. She was nervous during the audition, and felt she didn't perform well, but her brother said that she was rejected because of her plain looks. Boyle was not discouraged and continued to sing at church and at the karaoke nights in a local pub. Boyle suffered a personal loss in 1997, when her father passed away. After his death. Boyle put her big dreams on hold to care for her sick mother Bridget Boyle. The mother and daughter often talked of Susan's possible fame. Bridget Boyle encouraged her daughter to take part in singing competitions. "She was the one who said I should enterBritain's Got Talent. We used to watch it together." Susan later told reporters. "She thought I would win." In 1999, Boyle used all of her savings to pay for a professionaldemo tape. which she sent to record companies. In 2002, Boyle began taking singing lessons from voice coach Fred O'Neil. In 2007, Boyle's mother passed away at the age of 91. A neighbor reported that when Bridget Boyle died, her daughter "wouldn't come out for three or four days or answer the door or phone." She lived alone with her cat, Pebbles. For over a year, she refused to sing. But in August of 2008, O'Neil urged her to try out forBritain's Got Talent. Convinced that the performance would be an honor to her mother, Boyle auditioned in Glasgow, Scotland. She sangI Dreamed A Dreamin the first round of the show, which was aired on 11 April 2009. The 47-year-old Scottish woman's plain looks provided a sharpcontrast to her powerfully beautiful voice. The performance astonished the audience and the judges. Online videos of her performance totaled over 40 million views within a week. Although she failed to win the final ofBritain's Got Talent, Susan Boyle became globally popular. Her first albumI Dreamed A Dreamhas sold over five million copies.
Answer: optimistic
[A]:
Bridget Boyle's attitude towards her daughter's musical talent can be described as _ .