In order to appear more authoritative in a speaking situation, you should:

A lower the pitch of your voice.
B raise the pitch of your voice.
C use a sing-song pattern.
D avoid stressing syllables.

I think it is B but I am not sure.

I disagree. Men's voices usually command more attention than women's voices.

Hmm. so the obvious answer would be B then?

I meant A sorry.

Yes, the best answer is A.

Thank you Ms Sue! :)

You're welcome, Daniel.

I agree with A.