Read the following sentence.

brandon's huge collection of paper cranes come from his origami hobby.
which answer shows a correctly revised version of the above sentence?

a.
brandon's huge collection of paper cranes comes from his origami hobby.
b.
brandon's huge collections of paper cranes comes from his origami hobby.
c.
brandon's huge collection of paper cranes come's from his origami hobby.
d.
the sentence is correct as it is written.