In the Section "Investigating Life: Birds Do It,Bees Do It",what

In the section "Investigating Life: Birds Do It,Bees Do It",what can be concluded about the flower preferences of bumblebees?

A) They prefer pink flowers.
B) They prefer red flowers.
C) They prefer yellow-orange flowers.
D) They prefer M.lewisii no matter what color the flowers are.
E) They prefer M.cardinalis no matter what color the flowers arE.