newbie question

I recently purchased an 07 tahoe LTZ 2wd and have a few questions.  I did a search and could not find any answers for the below questions.

Did your Tahoe come with the ball hitch and pin?

What inch drop do you recommend for general towing?  (I saw a 2" and a 3 1/4" drop at the local Wal Mart and was wondering which would be better suited for general towing).  I do not have a trailer, just looking for all around general ball hitch.

Thanks

i was using 2 inch drop but my trailer look uneven so now using 5 inch drop bought from walmart

Truck didn't come will ball and hitch.  The receiver on this truck is a little higher than normal...go with the 5 inch drop!