I WILL MAKE YOU) Scientists are often faced with ethical questions, or questions of right and wrong. Which of the following are examples?

I. Mairead wants to include a hypothesis in her report, and she asks if she must give credit to the scientist who first proposed it.
II. Aiden is planning an experiment on gerbils, and he asks how large the cages should be.
III. Paula is developing a new technique for mining fossil fuels, and she asks if the technique must avoid polluting the environment.

A.
I. only

B.
I. and II. only

C.
II. and III. only

D.
I., II., and III.