One could add many different prefixes to tropism to get various results.
Photos + tropos = Phototropism = Turning toward the light.
Gravi + tropos = Gravitropism = Turning toward gravity, a.k.a. turning downwards. Plant stems exhibit negative gravitropism, as they grow upwards, against gravity. I would call it "graviphobia."
Hydro + tropos = Hydrotropism = Turning toward water. This is exhibited by plants' roots growing toward water.
Those are the ones that you can look up in a dictionary and find as legit words. These are ones I have just made up, but still make sense (to some degree).
Helio + tropos = Heliotropism = Turning toward the sun. Synonymous with phototropism.
Claudo + tropos = Claustropism = Turning toward enclosed spaces. Sounds silly, but that's what you do to go into an elevator. Synonymous with claustrophilia.
Caput + tropos = Caputropism = Turning toward the head. That's what everyone does when they face the leader of their group.
The effect of chemotherapy that most patients have the hardest time dealing with is the hair loss which can be really demoralizing. In the example situation given in the question, the nurse should reassure the patient who is experiencing chemotherapy-induced alopecia (alopecia meaning hair loss) that his hair loss is temporary and that it will be the way it was before when the chemotherapy is over.
When you excrete sweat for example, you are getting rid of salts and liquids you don’t need and this helps you maintain homeostasis by keeping everything in your body balanced/ stable.
The answer is C. Gorillas are more closely related because they are apart of the Great Ape family which includes Gorillas, Chimpanzees, Humans, and Orangotangs