Most angiosperms have alternate phyllotaxy.What allows each leaf to get the maximum exposure to light and reduces shading of lower leaves?

A)a leaf area index above 8
B)self-pruning
C)one leaf only per node
D)leaf emergence at an angle of 137.5°F from the site of previous leaves
E)a leaf area index above 8 and leaf emergence at an angle of 137.5°F from the site of previous leaves