In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.
The pilot asked all the passengers to sit tight until the turbulence subsided.
The correct answer is option 4, i.e. 'wait'.
The meaning of the given phrase 'sit tight' is to 'remain firmly in place and refrain from taking any action'.
Let us look at the meanings of the given words :-
Huddle - crowd together or nestle closely.$
Disseminate - spread something, especially information widely.$
Congregate - gather or assemble into a crowd or mass.$
Wait - stay where one is or delay action until a particular time or event.$
From the given context, the phrase implies that the pilot wants the passengers to remain calm and not move or take any action until told so. The last option is the closest match to the context.
Hence the correct answer is option 4.