Question

Suman .................... know the answer.

• A. can
• B. has
• C. could
• D. ought to

Hint:

Use "can" to show present ability; "could" is for past ability or polite request.

Answer 1

The Correct Option is A

Step 1: Context.
"Know the answer" expresses ability. The correct modal verb is "can."

Step 2: Checking options.
(A) can — correct for ability.
(B) has — incorrect usage.
(C) could — possible, but implies past or less certain.
(D) ought to — wrong meaning.

Step 3: Conclusion.
Correct answer is (A) can.