Double Concentration

<p>I just had a general question regarding double concentrations and a the 5 year Sc.B and A.B program. Is it true that the only reason to go the 5 year route is if you want two baccalaureate degrees (and also some courses flexibility I suppose) rather than one (if one completes both concentrations in 4 years)? As I understand it, if you finish 2 concentrations on 4 years, you pick either to have your baccalaureate degree in the sciences or arts but both concentrations do show up on your external transcript showing that you successfully completed them?</p>