It is a subset of the Catholic Church, that subset being the Roman Catholic/Vatican associated et al Church, that denies this truth by proclaiming Mary as equal to Christ in that she was sinless and kept the Law perfectly.
INDEED.
Note to FK: if either of the two deserves the Capitalization, it is the true UNIVERSAL (CATHOLIC) CHURCH OF JESUS THE CHRIST MADE UP OF ALL BELIEVERS.
I hear you. I was just trying to be polite. :)