Which Statement Is FALSE

Which statement is FALSE?

A) The spiritual and temporal influence of the Catholic Church in Latin America weakened significantly in the decades leading up to 1960.
B) Latin America was the most heavily Catholic region of the world in the mid-twentieth century.
C) The Second Vatican Council was hostile to ecumenism (collaboration with other Christian denominations and other faiths) .
D) Until the mid-1960s, Catholic Mass was celebrated in Latin, not in local vernacular languages.