What is one impact of the language used by caliban in this excerpt from the tempest?

i prithee, let me bring thee where crabs grow;
and i with my long nails will dig thee pignuts;
show thee a jay's nest and instruct thee how
to snare the nimble marmoset; i'll bring thee
to clustering filberts and sometimes i'll get thee
young scamels from the rock. wilt thou go with me?

a. it illustrates the vast resources available on the island.

b. it emphasizes the sailors' dependence on caliban.

c. its sarcasm highlights caliban's abuse.

d. it shows that caliban is intelligent and well spoken.