<p>Most colleges I'll be applying to require 3 SAT IIs. Do colleges require those 3 to be in completely different subject areas?</p>
<p>I was thinking about submitting my Math IIC (800), Bio (750), and Chem (730), but should I not submit two sciences, and instead switch one to a history/english/foreign language?</p>
<p>You don't get to choose. They look at all of them, and pick whichever ones are highest. If it's a regular college, they generally won't care what the subject is, and only look at the scores.</p>