In the sentence given below, a word is printed in bold. Below it, four choices are given. Pick the one which is most nearly the same in meaning as the word printed in bold and can replace it without altering the meaning of the sentence.
As soon as he finished his speech, there was spontaneous applause from the audience.
well-timed
willing
instinctive
instantaneous
Correct answer is C
No explanation has been provided for this answer.