I need to know 4 varietals of grapes found in CA

[Thomas]

If you are applying for a job connected to wine in any way it would be better for your success to learn about wine rather than just learn four words connected to wine. For instance, a waiter who can recommend wine to pair with food can do quite well in tips; a waiter who hasn't a clue can kiss those tips goodbye.

So, what is the job you are applying for?