20 Assertion (A) : Pyruvate is a six - carbon molecule
Reason (R): It is prepared in the cytoplasm as the first step of respiration.
(a) Both A and R are true and R is the correct explanation of A .
(b) 18 th A and R are true but R is not the correct explanation of A .
A is true but \( R \) is false.
(d) \( A \) is false but \( R \) is true.
