The Fischer projection of D-erythrose is shown below.

D-Erythrose and its isomers are listed as P, Q, R, and S in Column-I. Choose the correct relationship of P, Q, R, and S with D-erythrose from Column II. 

	COLUMN - I		COLUMN - II
P)		1.	Diastereomer
Q)		2.	Identical
R)		3.	Enantiomer
S)

 

 

• A

  P $\to$ 2, Q $\to$ 3, R $\to$ 2, S $\to$ 2

• B

  P $\to$ 3, Q $\to$ 1, R $\to$ 1, S $\to$ 2 

• C

  P $\to$ 2, Q $\to$ 1, R $\to$ 1, S $\to$ 3

• D

  P $\to$ 2, Q $\to$ 3, R $\to$ 3, S $\to$ 1