Read the sentence.I had to prove my identity to gain entrance to the building I was required to fill out an impressive number of forms.
A
I had to prove my identity to gain entrance to the building, I was required to fill out an impressive number of forms.B
I had to prove my identity to gain entrance to the building; I was required to fill out an impressive number of forms.C
I had to prove my identity, to gain entrance to the building I was required to fill out an impressive number of forms.D
I had to prove my identity: to gain entrance to the building I was required to fill out an impressive number of forms.