Please answer a question about the following article about Mary (mother of Jesus):

In the Catholic Church, Mary is accorded the title "Blessed", (from Latin beatus, blessed, via Greek , makarios and Latin facere, make) in recognition of her assumption to Heaven and her capacity to intercede on behalf of those who pray to her. Catholic teachings make clear that Mary is not considered divine and prayers to her are not answered by her, they are answered by God. The four Catholic dogmas regarding Mary are: Mother of God, Perpetual virginity of Mary, Immaculate Conception (of Mary) and Assumption of Mary.

How many Catholic dogmas are there regarding Mary?
four