Based on the Fossil Record,all Major Groups of Angiosperms Evolved

Based on the fossil record,all major groups of angiosperms evolved quickly during the age of the dinosaurs.What might explain the rapid rise and success of the flowering plants?

A) use of the wind to disperse pollen and seeds
B) use of flowers and fruits to protect and disperse both pollen and seeds
C) use of the wind to disperse spores
D) use of water to disperse pollen and seeds
E) All answers are correct.