Question

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.
what is the best way to revise the sentence?
\bigcirc i had to prove my identity to gain entrance to the
building. i was required to fill out an impressive
number of forms.
\bigcirc i had to prove my identity to gain entrance to the
building; i was required to fill out an impressive
number of forms.
\bigcirc i had to prove my identity, to gain entrance to the
building i was required to fill out an impressive number
of forms.
\bigcirc i had to prove my identity: to gain entrance to the
building i was required to fill out an impressive number
of forms.

Explanation:

To determine the best revision, we analyze punctuation. The two independent clauses ("I had to prove my identity to gain entrance to the building" and "I was required to fill out an impressive number of forms") should be separated by a semicolon (as they are related but independent). A period would create a choppy flow, a comma would create a run - on, and a colon is incorrect here. The option with a semicolon between the two clauses is correct.

Answer:

B. I had to prove my identity to gain entrance to the building; I was required to fill out an impressive number of forms.