In spite of the roadblock (1)/ the guards allowed us (2)/ enter the restricted area to search for our friends. (3)/ No error. (4)

Options

A. 1. In spite of the roadblock
B. 2. the guards allowed us
C. 3. enter the restricted area to search for our friends.
D. 4. No error

Answer

3

Explanation

to enter will replace enter because - to enter is the direct object.
An infinitive with to is used when the infinitive is the direct object. as in
`{:("Everyone wanted to go"),(" "darr " "darr " "darr),("Subjetc Verb Direct Object (to + Inf.)"):}`
Hence, to enter the restricted area to search for our friends is the right usage.