AhmedNazir

Call

Option 3 : P and S

Given-

Medal

Gold Silver Bronze
Points 5 3 2

Calculation-

Points earned by P-

P Gold Silver Bronze Total points
Number 3 2 5  
Points 15 6 10 31

Points earned by Q-

Q Gold Silver Bronze Total points
Number 3 2 3  
Points 15 6 6 27

Points earned by R-

R Gold Silver Bronze Total points
Number 1 2 0  
Points 5 6 0 11

Points earned by S-

S Gold Silver Bronze Total points
Number 2 2 7  
Points 10 6 14 30

Here, the least difference is between P and S which is 1.

Hence, Option (3) is the answer.