Which of the statements is correct about diastereomers?
(a) They are stereoisomers that are not enantiomers.
(b) They are a pair of identical isomers.
(c) They are a pair of isomers that are mirror images.
(d) All their asymmetric centers are the same.
(a) They are stereoisomers that are not enantiomers.
(b) They are a pair of identical isomers.
(c) They are a pair of isomers that are mirror images.
(d) All their asymmetric centers are the same.