The correct option is C 3:00 p.m.
The meeting started at 2:45 pm.
Susan came 15 minutes late.
That is, she reached in 15 minutes after 2:45.
We have, 45+15=60.
So, adding 15 minutes to 45 minutes makes 60 minutes and we know 60 minutes = 1 hour.
So, 2hrs 60 minutes is same as (2+1) hours = 3:00
∴ Susan reached the meeting hall at 3:00 pm.