Choose the appropriate question tag for the following statement:

You're the new secretary.

A. Aren't you?
B. Are you?
C. Weren't you?
D. Couldn't you?

Choose the correct answer from the options given below:

A only

The correct answer is A only.

The question tag "aren't you?" is used to confirm affirmative statements. In this case, the statement "You're the new secretary" is an affirmative statement, so the question tag "aren't you?" is appropriate.