What does curly mean?

[Egyptian Boy]

English Grammar Tests, Elementary Level

ESL/EFL Test "Elementary Adjectives", question 10

My mom's hair is not straight, it is ..........

(a) long
(b) short
(c) curly
(d) grey

English Grammar Tests, Elementary Level

ESL/EFL Test "Elementary Adjectives", answer 10

My mom's hair is not straight, it is curly.

Correct answer: (c) curly

Your answer was: incorrect
My mom's hair is not straight, it is grey.
_________________________

what does curly mean?

[Mister Micawber]

.
Curly = (of hair) not straight; having curls or waves
.
_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mister Micawber