Question: Parfit claims that choosing to save the larger number in a trade-off case:
A: does not reflect an equal concern for the survival of each, for it does not give equal weight to saving each.
B: does not reflect an equal concern for the survival of each, for it does not give each an equal chance of survival.
C: reflects an equal concern for the survival of each, for it gives equal weight to saving each.
D: reflects an equal concern for the survival of each, for it gives each an equal chance of survival.
Please eliminate two incorrect options first, then think it step by step and choose the most proper one option.