It's either A. or C. because since its near the equator it's not going to be dry.
Parasitism
Parasitism can be defined
as a relationship between species in which one organism (parasite) lives on or
in another organism which is the host, causing it some harm without immediately
killing it. Thus, parasitism is a kinds of close, symbiosis and persistent
biological interactions.
UV rays reacting with the O2 molecules
I might be wrong a little but
Hope the helps :)