Katy, with her sister Sandy, _____ visit her Aunt Peggy. [ ]

A. are going to

B. is going to

C. are going

增值税纳税人兼营非应税劳务不分别核算或不能准确核算的，应当一并征收增值税，但其兼营的非应税劳务所用购进货物的进项税额，一律不得从销项税额中抵扣。 ( )