For This Pair of Items, Choose the Option That Best

For this pair of items, choose the option that best describes their relationship. (A) The percent of plant species that form ectomycorrhizae
(B) The percent of plant species that form arbuscular mycorrhizae

A) Item (A) is greater than item (B) .
B) Item (A) is less than item (B) .
C) Item (A) is exactly or very approximately equal to item (B) .
D) Item (A) may stand in more than one of the above relations to item (B) .