In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.
Failing to act or protest as a result of moral weakness or indolence.

* Supine means failing to act or protest as a result of moral weakness or indolence; it can also mean lying face upward.
Recline means lean or lie back in a relaxed position.

Oblate means flattened at the poles (like the Earth).

Prostrate means lying stretched out on the ground with one's face downwards.