A gardener in Canada wants to surprise his mother on her birthday and make her favorite hibiscus bush flower in May instead of at the end of June.The bush is growing in the greenhouse.Which of the following might make the hibiscus bush flower early?
A) grafting leaves of a hibiscus that was exposed to long night
B) grafting leaves of a hibiscus that was exposed to short night
C) exposing flower buds of the hibiscus bush to long nights
D) exposing flower buds of the hibiscus bush to short nights
Correct Answer:
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