The question is answered.
Last edited by colossal; 18-Jan-2013 at 14:46.
Actually, colossal did try first—he/she picked c.
The answer is b. We don't use the simple present like that.
The OP has edited the first post and removed the question. I'm closing the thread.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.