Passive is defined as

• A. Complacent
• B. Submissive
• C. Inert
• D. Inactive

Answer: (D)

Passive means not taking action or not participating actively. In everyday usage, it describes someone who doesn’t act or respond proactively. The best match here is inactive, which directly conveys a lack of activity or not being active. Complacent suggests self-satisfaction and a lack of concern but isn’t a direct synonym for not acting. Submissive means yielding to others, which is a different sense. Inert is closely related but usually refers to something unable to move or to chemical unusability, a more technical nuance than the general sense of passive. For example, “She remained passive during the discussion” can be understood as “She stayed inactive” or “She did not participate actively.”