Question

a(n) ________ dry fruit that remains closed at maturity like a sunflower, while a(n) ________ dry fruit will split open to release its seeds when mature like okra.

dehiscent / indehiscent
simple / aggregate
aggregate / multiple
indehiscent / dehiscent

Explanation:

Indehiscent fruits remain closed at maturity, like sun - flower. Dehiscent fruits split open to release seeds when mature, like okra.

Answer:

D. indehiscent / dehiscent