(a) Serendipity (chance), faux pas (mistake): inappropriate pair. (b) predilection (liking), despair (loss of hope): inappropriate pair. (c) intensity (strength of feeling or effort), success: appropriate. (d) oddity (strangeness), conformity (following guidelines): inappropriate.

Correct Option: C

(a) Serendipity (chance), faux pas (mistake): inappropriate pair. (b) predilection (liking), despair (loss of hope): inappropriate pair. (c) intensity (strength of feeling or effort), success: appropriate. (d) oddity (strangeness), conformity (following guidelines): inappropriate.
The correct word is filled in the above given sentence :-
The organization takes its cue from the person on the top. I always told our business leaders their personal intensity determined their organization’s success.

The masks worn by the men helped them conceal their identity. Conceal means hide.

Correct Option: A

The masks worn by the men helped them conceal their identity. Conceal means hide.
As we can say that ,
The correct word is filled in the above given sentence :-
The masks worn by the men helped them conceal their identity.

Precautions are to be taken with anyone who seems infectious. [infectious means likely to transmit or spread in a rapid manner. Contagious and diseased is not used in this context because they refers to already having infection].

Correct Option: B

Precautions are to be taken with anyone who seems infectious. [infectious means likely to transmit or spread in a rapid manner. Contagious and diseased is not used in this context because they refers to already having infection].
The correct word is filled in the above given sentence :-
Precautions are to be taken with any one who seems infectious.
Therefore , option B is required word .

The treasure was hidden off the shore. When something is hidden “off the shore,” it just means that it’s hidden somewhere near it.
The correct word is filled in the above given sentence :-
off

Correct Option: D

As we can say that ,
The treasure was hidden off the shore. When something is hidden “off the shore,” it just means that it’s hidden somewhere near it.
The correct word is filled in the above given sentence :-
The treasure was hidden off a big shore.

As we can say that ,
The correct word is given as :-
auspicious

Correct Option: B

As we can say that ,
The correct word is filled in the above given sentence :-
On the auspicious occasion of Laxmi puja, the Mathurs bought a new car.