TASK DEFINITION: In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").
PROBLEM: which of these people would be most susceptible to disease? (A) a person with a healthy white blood cell (B) a person with optimal conditions (C) a person with a weak white blood cell (D) an athlete with a clean bill of health

SOLUTION: C

PROBLEM: The size of eyes matter relevant to sight and sight ability, given that (A) elephants see better than ants (B) wolves see better than giraffe (C) people see better than dogs (D) dogs see better than cats

SOLUTION: A

PROBLEM: do ecosystems remain the same? (A) they are altered with time (B) ecosystems are always the same (C) with time they only grow (D) ecosystems experience very little change

SOLUTION:
A