choose the option nearly opposite in meaning to the word(s) underlined

Insecurity has escalated since the present government came into power.

choose the option nearly opposite in meaning to the word(s) underlined

It is embarrassing to accept our mistakes and tender an apology.

choose the option nearly opposite in meaning to the word(s) underlined

The lawmakers are perceived to be the greediest set of politicians.

choose the option nearly opposite in meaning to the word(s) underlined

James found the photocopied material invaluable while preparing for the examination

choose the option nearly opposite in meaning to the word(s) underlined

Mr. Akin's health has greatly degenerated in the last week.