In 'Choose The Analogous Pair' type, a pair of words is given, followed by four pairs of words as alternatives. The candidate is required to choose the pair in which the words bear the same relationship to each other as the words of the given pair bear.
Interrupt : Speak
'Interrupt' means not to let someone speak.
So, it is the opposite of 'Speak'.
Similarly, 'Assist' is the opposite of 'Interfere'.
Hence, the answer is (d) Interfere : Assist.