Competitive majors?

<p>Hi,
So I was rejected from undecided engineering (ACT 25, GPA 3.35)
and they said I could change my major to get accepted at Purdue. (Denied, reconsideration).
I haven't called the admissions office yet since its the holidays but I just wanted to know what other majors are competitive at Purdue.
My second choice would be pre-dentistry but I think that would be a competitive major too so I'm not very sure........ if not the Health Sciences major.
My top was
1) Undecided engineering (Denied)
2) pre dentistry
3) Health Sciences - Preprofessional
4) Exploratory Studies (Hopefully last option...)</p>

<p>Which one of these major would I get in most likely?</p>

<p>I would guess 3, with an even better chance for 4.</p>