Why did the council of trent attack the church music of the renaissance?

The Church music of the Renaissance was attacked by the Council of Trent because of their use of secular music. Secular vocal music contains a lot of quick changes in mood than what they consider as holy music. The council also considered this type of music as an impurity to the Catholic Church, and so purification of the Church was the justification for those actions.

i think it's a)sparta

d. dr. francis collins