(A) Amino acid that can be synthesised by human body is called essential amino acid.
(R) All `alpha` -amino acids are essential amino acids.

Options

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

Answer

D