In California, the country’s largest university system is moving to become selective in its admissions for the first time. And both the ACT and SAT have their eyes on the Golden State. They see the UC system as an opportunity to move beyond their regional strongholds and become a national test. The president of the University of California is partial to the SAT, but the ACT gains a surprising toehold, pitting the two tests against each other for the first time.