I think your answer is b.
The correct answer is Harmful
<span>Here's what I found:
STEP 1: Move the object to the subject position.
STEP 2: Change the verb to the passive, making sure that BE takes the same tense as the verb in the active sentence.
STEP 3: Drop the subject. Example of passive voice without the subject <span>or move it to a position after the verb.
Hope this helps!</span></span>
The correct answer would be - A: unique
