The correct answer is The meter is fixed, drawing attention to the end rhyme.
Both lines have the same number of syllables and the accent pattern is identical in both, which means it is a fixed meter. Not every syllable is stressed however, only the ones that are required for the pattern.
I think there are two ptions that show internal conflict:
1) He considers whether or not to trust the inmate who tells him he´s not fifteen.
In this case he doesn't know the inmmate and doesn't know the exact reason hes telling him to lie. One reason is because he wants to help him, that information would save his life from the SS. The other option is that the inmmate is selfish and by telling him to lie, the kid will be punished instead of him. The kid must decide then if he trusts him or not.
2) He must decide whether or not to tell Dr. Mengele the truth about his age.
In this case he has even more doubts, he knows Mengeles reputation and he doesn't know how much information does he have and how will it affect him. If he lies he might know it and punish him or that lie could save him.
The conflict is real because his life could depend on the decissions he makes.
I would go with option a the Tom sawyer is more comedic the other is more informative
