The figure below illustrates the results of a laboratory experiment that simulates potted irises being exposed to differing lengths of darkness. 
How would flowering in these irises be affected by disrupting the length of their light exposure?
A) It would stimulate flowering.
B) It would suppress flowering.
C) It would stimulate branching and increase total flower production.
D) There would be no effect because irises use the length of darkness to coordinate flowering.
Correct Answer:
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