Final answer:
Ender Wiggin decides to befriend Petra Arkanian after realizing Bonzo Madrid will not be his friend in the novel 'Ender's Game' by Orson Scott Card. The correct option is A.
Step-by-step explanation:
Since Bonzo Madrid was not going to be Ender's friend, he decided he might as well be friends with the girl Petra. This question is based on a character relationship from the science fiction novel 'Ender's Game' by Orson Scott Card. In the book, Ender Wiggin faces isolation and hostility in Battle School.
Petra Arkanian is one of the few characters who shows kindness toward Ender and helps him in his training. While Bonzo Madrid is hostile and becomes one of Ender's antagonists, Petra becomes a friend and ally. The correct option is A.