Question

everybody was greatly amused______her ignorance of simple facts of life .
1)in
2)at
3)from
4) without​

Answer 1

At is the correct answer

Answer 2

Concept introduction:

Prepositions are a type of words which usually sits before nouns and pronouns to show the direction or relationship or to introduce an object.

Explanation:

We have been provided sentences with blanks.

We need to fill the blanks using preposition.

Everybody was greatly amused $2)$ at her ignorance of simple facts of life .

Final answer:

So, the correct option of the question is - $(2)$ at.