A) that signals from plant roots control phototropism
B) that a translucent cap placed over a shoot tip will cause a plant to both grow and bend toward light
C) that a translucent cap placed over a shoot tip will cause a plant to bend toward light, but will inhibit growth
D) that an opaque cap placed over a shoot tip will cause a plant to bend toward light, but will inhibit growth

A) jasmonates
B) gibberellins
C) auxins
D) systemin

A) The shoot will stop growing.
B) The shoot will grow faster on the side with the agar block.
C) The shoot will grow straight up.
D) The shoot will grow faster on the side away from the agar block.