Question

ho o oh hemiacetal acetal neither

Explanation:

A hemiacetal has a carbon atom bonded to one -OR group and one -OH group along with two other carbon - containing groups. An acetal has a carbon atom bonded to two -OR groups and two other carbon - containing groups. In the given structure, the central carbon is bonded to one -OH group and two -OR groups (the alkoxy groups), so it is a hemiacetal.

Answer:

hemiacetal