A samara is a dry, indehiscent (does not split open at maturity) fruit that has a wing-like structure, which helps in wind dispersal. It forms from a single carpel, and examples include the seeds of maples and ash trees.

Here’s an explanation of the other options:

A. Schizocarp – A fruit that splits into separate parts (called mericarps), but not winged, and typically forms from multiple carpels.

B. Caryopsis – A type of dry, indehiscent fruit where the seed is fused to the fruit wall (e.g., grains like wheat or corn).

D. Nut – A hard, indehiscent fruit with a single seed, but not winged.

E. Follicle – A fruit that splits open along one seam to release its seeds, not a winged fruit.