Match the four starting materials (P,Q,R,S) gien in List-I with the corresponding reaction schemes (I,II,III,IV) provided in List II and select the correct answer using the code given below the lists.

Options

A. `{:("P Q R S"),("1 4 2 3"):}`
B. `{:("P Q R S"),("3 1 4 2"):}`
C. `{:("P Q R S"),("3 4 2 1"):}`
D. `{:("P Q R S"),("4 1 3 2"):}`

Answer

C