What does the phrase “It's not satisfactory” in paragraph 3 mean? Dinah didn't follow the rules of a new school. Dinah wasn't friendly enough with the prefects. Dinah didn't know the colour of a new school. Dinah's answers were too short and incorrect.

Задание

What does the phrase “It's not satisfactory” in paragraph 3 mean?

Dinah didn't follow the rules of a new school.
Dinah wasn't friendly enough with the prefects.
Dinah didn't know the colour of a new school.
Dinah's answers were too short and incorrect.