Oat Seedlings Are Sometimes Used to Study Auxins Because

Multiple Choice

Oat seedlings are sometimes used to study auxins because

A) they are a readily accessible monocot, and auxins affect only monocots.
B) they have a stiff coleoptile.
C) they green rapidly in the light.
D) their coleoptile exhibits a strong positive phototropism.
E) monocots inactivate synthetic auxins.