Cal grant questions

I called web grant or CSAC to get some questions answered but it made me even more confused about Cal Grants. I wanted to ask when I’m awarded Cal grant’s A and B am I able to claim both of them for financial aid to pay for the CSU that I will be attending? I was told you can only choose one and that I should choose the one that gives the most. Is this the correct choice or was I told BS? Also I submitted a GPA verification form to update my GPA since at the end of high school it was 2.1(pretty bad) but now is a 3.0 in order to be eligible for Cal grant A and B for CSU’s. Does the GPA verification get updated after the FAFSA deadline or before? I submitted it at 01/16/2018 and I’ve checked the website with no change.