How is the relative pronoun in the adjective clause used in the sentence?

Albert Einstein, whose theories changed science forever, is a great inspiration to me.

A.
direct object

B.
possessive

C.
object of a preposition

D.
subject

Question

How is the relative pronoun in the adjective clause used in the sentence? 

Albert Einstein, whose theories changed science forever, is a great inspiration to me.
	
	
 
A.
	direct object
	
 
B.
	possessive
	
 
C.
	object of a preposition
	
 
D.
	subject

therealmeeeee · Answer

Albert Einstein, whose theories changed science forever, is a great inspiration to me. The relative pronoun in the adjective clause is used as: POSSESSIVE.