The correct option is
B Maize
A caryopsis is a type of simple dry fruit—one that is monocarpellate (formed from a single carpel) and indehiscent (not opening at maturity) and resembles an achene, except that in a caryopsis the pericarp is fused with the thin seed coat. Caryopsis is found in grasses (Poaceae). Maize is a member of the family poaceae.