`beta-`Hydroxy propanoic acid on heating gives acrylic acid.
Acrylic acid exists in two diastereomers.

Options

A. If both `(A)` are `( R)` are true and `( R)` is the correct explanation of `(A)`.
B. If both `(A)` and `( R)` are true but `( R)` is not the correct explanation of `(A)`.
C. If `(A)` is true but `( R)` is false.
D. If `(A)` is false but `( R)` is true.

Answer

C

Explanation

Acrylic acid `(CH_2 = CH -COOH)` does not show geometrical isomers.