If you deliberate on something, you consider it carefully, often in formal meetings with other people.

Correct Option: B

If you deliberate on something, you consider it carefully, often in formal meetings with other people.
The correct word is filled in the above given sentence :-
The speaker did not properly use the time as he went on deliberating on one point alone.
Hence , option B is correct word .

As we can say that ,
If something changes or becomes true in the course of time, it has so become over a long period of time.

Correct Option: B

As we can say that ,
If something changes or becomes true in the course of time, it has so become over a long period of time.
The correct word is filled in the above given sentence :-
He became the Governor of a Province in the course of time.
Therefore , option B is required word .

‘With’ is used for ‘contentment’.

Correct Option: B

‘With’ is used for ‘contentment’. All other options are not valid and do not have any sense.
The correct word is filled in the above given sentence :-
Happiness consists in being contented with what we have
Hence , option B is correct word .

As we know that ,
A rite is a traditional ceremony carried out by a particular group or within a particular society.

Correct Option: A

As we know that ,
A rite is a traditional ceremony carried out by a particular group or within a particular society. The last rites are performed when a person dies.
The correct word is filled in the above given sentence :-
The last rites were performed before the body was cremated.
So , required word will be option A .

As we can say that ,
Both (a) and (b) are correct but apprised is a formal usage. Such formal usages are preferred when the persons involved include “the Chief Minister” himself - a stately personage.
The correct word is filled in the above given sentence :-
The official apprised the Chief Minister of the situation in the town.

Correct Option: A

As we can say that ,
Both (a) and (b) are correct but apprised is a formal usage. Such formal usages are preferred when the persons involved include “the Chief Minister” himself - a stately personage.
The correct word is filled in the above given sentence :-
The official apprised the Chief Minister of the situation in the town.
Thus , option A is correct word .