<p>OP,</p>
<p>Your question is too broad and somewhat naive. Starting a business is mostly dependent on market conditions and how specific knowledge may be applied to meet a specific demand. There are so many factors that affect a business that it is virtually impossible to say with any degree of certainty what particular major will best prepare you for entrepreneurship.</p>
<p>The “best” advice anyone could give you is to maintain your senses aware and learn when, where, why, and how to apply the knowledge you have to efficiently meet the (real/artificial) demands of others.</p>