The correct answer is C. Latent. Hope this helps!
Congress helps pass laws that the president approves
Answer:
Commensalism is a symbiotic relationship in which one species benefits while the other is not affected. Parasitism is a symbiotic relationship in which the parasitic species benefits while the host species is harmed.
Actually, I am pretty certain that all of the options are common type of volunteering. I feel that the question is suggesting that the educational activities are not typically done as volunteering in the developed world, but in the developing world, educational volunteering is very common (see for example the organisation "teach for [name of country]- operating both in developed and developing world.