Do I have to send all my SAT scores to the UC system? Can I get away with not sending all of them?

So as I was sending my scores and I realized that the UC’s want all of my SAT scores. I have took the SAT a total of three times. I got 1810 twice and a 1920.

Do I have to send all my scores or can I just send my highest?
Are there any repercussions if I only send my highest?
How will they know if I send one or all my scores?
Has anybody only sent their highest and gotten accepted?

I don’t want to risk my acceptance because I decided not to disclose all my SAT scores. Is it really that big of a deal?

My SAT score went down from the second to the third time. So it went from a 1920 to an 1810. Will they view that as a fluke? That I just got lucky but in reality I’m at an 1810.

Thank you so much for your time, I appreciate it.

Be honest. You do not want your acceptance withdrew due to dishonesty. See http://admission.universityofcalifornia.edu/freshman/requirements/examination-requirement/

Get this - your 1810 will NOT lower your chances of acceptance. They will use the 1920. Now send them.

Thank you. I greatly appreciate your input. I’ll be sending all of them.