The correct option is D Etaerio of berries
An aggregate fruit or an etaerio is a fruit that develops from the merger of several ovaries that were separate in a single flower. In contrast to a simple fruit develops from one ovary. Not all flowers with multiple ovaries form aggregate fruit; the ovaries of some flowers do not become tightly joined together to make a larger fruit. Aggregate fruits may also be accessory fruits, in which parts of the flower other than the ovary become fleshy and form part of the fruit. Thus, Artabotrys odoratissima is an etaerio of berries.
Thus, the correct answer is option D.