Select the appropriate synonym for the underlined word.

There is no need to panic, not yet.

fright 

The correct answer is option 3. fright.

In the given sentence, "panic" is a verb meaning to feel sudden uncontrollable fear or anxiety, often causing wildly unthinking behavior. "Fright" is a suitable synonym for "panic" because it also refers to a sudden intense feeling of fear. In this context, the speaker is advising against experiencing panic, implying that there is no imminent danger or reason for extreme fear.