Boston College - declare major on application?

Does anyone know if Boston College admits based on my selection of major within Arts & Sciences school? Deciding between Communications or undecided. Do you think it matters?

it probably doesn’t matter unless something in your app stands out inconsistent in your proposed major. For example, you have lowish math scores (grades, SAT and/or AP) and you mark down that you want to be a physics major. OTOH, if your EC’s and personal interests align with the proposed major, it shows fit.

Also you declare your major second semester sophomore year. I agree with @bluebayou. Also it is considered to be more a school by school process. Lynch CSOM MCAS and nursing in groups of applicants.