Choose the One Most Appropriate Answer for Each

Choose the one most appropriate answer for each. Each letter will be used once.​
-photoperiodism

A) ​growth response that orients parts of a plant in a direction influenced by light
B) ​plays a critical role in apical dominance
C) ​an organism's response to changes in length of day relative to night
D) ​organelle involved in sensing gravity
E) ​light-sensitive pigment that helps set plant circadian rhythm based on length of night
F) ​low-temperature stimulation of flowering
G) ​closes stomata in times of stress
H) ​stimulates fruit ripening
I) ​flowers only when hours of darkness fall below a critical value
J) ​flavonoid in cocoa responsible for the unusual absence of heart disease in the Kuna
K) ​occurring on a 24-hour cycle
L) ​flowers only when hours of darkness are greater than some critical value
M) ​activates systemic acquired resistance
N) ​stimulates growth of lateral buds
O) ​mobilizes food reserves in germinating seeds