The correct answer is C. Emptiness.
Inanity is a state of being empty or lacking in substance. It can also refer to something that is foolish or pointless.
Silliness is a state of being foolish or silly. It can also refer to something that
is foolish or pointless.Passivity is a state of being inactive or not taking action. It can also refer to a person who is not assertive or does not take initiative.
Strictness is a state of being firm or severe. It can also refer to a person who is
firm or severe in their attitude or behavior.Inanity is the closest synonym to the word “inane”. Silliness, passivity, and strictness are not synonyms of “inane”.