Which of the following statements is/are definitely correct?

Select the most appropriate option to fill in the blank.

Social isolation, overcrowding, the_____of our society and several other factors are

Select the most appropriate synonym of the given word.

ENIGMATIC

The ending of the movie was utterly ambiguous (A) / ambivalent (B) as it was totally out of context.

a room where medicines are prepared and provided

I know a (lots) of women who are most comfortable in a sari.

Select the most appropriate ANTONYM of the given word.

Seize

Select the most appropriate word to fill in the blank.

She ___on paying the bill at the restaurant.

When I went to see her today at her house, her face was completely pail (A)/ pale (B).