Final answer:
The antonym of "urge" is "deter", which means to discourage someone from doing something, as opposed to urge which means to encourage.
Step-by-step explanation:
The antonym of "urge" is deter. While "urge" implies a strong desire to encourage someone to take a particular action, "deter" suggests discouraging someone from doing something. The correct option from the list provided in the question is the second one, "deter". For instance, if someone has the urge to go running every morning, an injury might deter them from continuing that habit. Understanding antonyms is crucial for vocabulary development and can enrich one's ability to express ideas with more precision.