What Is the Correct Assignment of the Names of the Following

Multiple Choice

What is the correct assignment of the names of the following functional groups?

A) 1 = enol; 2 = hydrate; 3 = acetal; 4 = hemiacetal
B) 1 = acetal; 2 = hydrate; 3 = enol; 4 = hemiacetal
C) 1 = hydrate; 2 = hemiacetal; 3 = acetal; 4 = enol
D) 1 = enol; 2 = hydrate; 3 = hemiacetal; 4 = enol