<p>There’s not necessarily much of a distinction between them. Some schools don’t even offer the option. </p>
<p>Berkeley, for example, does not have a B.S. in physics. They have a B.A. in physics. But there are few people in the world who will claim that a B.A. in physics from Berkeley somehow pales in comparison to a B.S. from another school. It’s really a difference in name only for the most part these days. </p>