Which revision best corrects the shift in verb mood?

Find out how to get tickets, and it is a good idea to buy them right away.


A) Did you find out how to get tickets, and it is a good idea to buy them right away?

B) Find out how to get tickets, and is it a good idea to buy them right away?

C) You will need to find out how to get tickets, and make sure to buy them right away.

D) Find out how to get tickets, and buy them right away.