Select the correct passive form of the given sentence.
The security guard opened the gate using his pass.

Options

A. The gate is open by the security guard by using his pass
B. The gate was opened by the security guard using h is pass
C. The gate opened the s ecurity guard using his pass.
D. The gate was open by the security guard use his pass.

Explanation

(b) The gate was opened by the security guard using his pass. (Correct)(a) The gate is open by the security guard by using his pass. (Tense has changed) (c) The gate opened the security guard using his pass. (Incorrect Tense and Structure) (d) The gate was open by the security guard use his pass. (Incorrect Verb)