In the following question, out of the four alternatives, choose the one which can be substituted for the given word/sentence.

Code of diplomatic etiquette and precedence is

Choose the word which best expresses the meaning of the underlined word in the sentence.

Decay is an $$\underline {immutable} $$ factor of human life.

Choose the word which best expresses the meaning of the underlined word in the sentence.

It was an $$\underline {ignominious} $$ defect for the team.

Choose the word which best expresses the meaning of the underlined word in the sentence.

His $$\underline {conjecture} $$ was the better than mine.