Accordingtothepassagesomeguestsmaybeinvitedbecause（）
A.Theyarelikelytobeannoyediftheyarenot.
B.Theymaygivevaluablepresents.
C.Theirpresencecouldprovidefuturebenefits.
D.Theymayhelpwiththeexpensesofthewedding.