Match the chemical conversions in List with the appropriate reagent in List II and select the correct answer using the code given below the lists:
List I

List II
1. `(i) Hg(OAc)_2, (ii) NaBH_2`
2. (i) alcKOH
3. Et-Br
4. `(i) BH_3, (ii) H_2O_2//NaOH`

Options

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

Answer

A