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").

Which can be used to pass information from one person to another? (A) an invention by Marconi (B) an invention by Newton (C) an invention by McCormick (D) an invention by Pasteur
A

In the food chain process what has the role of producer? (A) eaters (B) flora (C) carnivore (D) consumers
B

If someone is dying of liquid needs, they can hydrate the body by (A) high temp snow (B) catching falling ash (C) visiting a valley (D) pray

A