Need advice on answering comprehension questions, thank you teachers!

Quoted from a passage in a comprehension:

When someone calls a person "a chameleon", he means that person is very good at disguising and quick with his actions.
There are about ninety kinds of chameleons and they vary in length from four to sixty centimetres.

Q1: Will you trust someone who is often called "a chameleon" by others? Why?

When a question contains the word "someone", how should I answer it?
Please correct if I am wrong, thanks teachers! ^o^

A1: No, because they are ( should I use "they are" or sth else?) very good at disguising and quick with his actions.

A2:No, I will not trust someone who is often called "a chameleon" by others because they are very good at disguising.

A3: No, I will not because a chameleon is very good at disguising, so maybe the one who is often called "a chameleon" will also disguise themselves and often tell lies. ( Please correct this answer if there's any mistakes, thanks)


Q2: How long can a chameleon be?

A1: It can be 4 to 60 cm long.
A2: It can be from 4 to 60 cm in length.
A3: It can be 60 cm long.

(Please correct me if any of the above answers are not correct, teachers! )


Thanks very much for advising, teachers! ^o^