How would this glossed sentence best be interpreted into English?

Question

P-T-A MEETING START WHEN? 5:00 EXACT!

(3 points)
Responses

The P.T.A meeting starts at 5:00 exact.
The P.T.A meeting starts at 5:00 exact.

The P.T.A. meeting starts at 5:00 sharp.
The P.T.A. meeting starts at 5:00 sharp.

The P.T.A meeting starts when? 5:00 exact.
The P.T.A meeting starts when? 5:00 exact.

The P.T.A meeting starts when? 5:00 sharp.

Answer 1

The P.T.A meeting starts at exactly 5:00.