What is the function of the relative pronoun in the adjective clause?
After two years, I met the friend with whom I had exchanged many letters.
A.
possessive
B.
subject
C.
object of a preposition
D.
direct object
After two years, I met the friend with whom I had exchanged many letters.
A.
possessive
B.
subject
C.
object of a preposition
D.
direct object