Hydrangeas Are Flowering Plants with Large, Showy Blooms

Multiple Choice

Hydrangeas are flowering plants with large, showy blooms. When the plant is grown in alkaline soil, the flowers are pink. When the plant is grown in acidic soil, the flowers turn blue. This change is phenotype is an example of

A) codominance.
B) incomplete dominance.
C) environmental influence.
D) polygenic inheritance.
E) epistatic interaction.