JEE Main Physics question

Statement I: In an elastic collision between two bodies, the relative speed of the bodies after collision is equal to the relative speed before the collision. Statement II: In an elastic collision, the linear momentum of the system is conserved. [IIT JEE 2007]

• (A)Statement I is true, Statement II is true; Statement II is a correct explanation for Statement I
• (B)Statement I is true, Statement II is true; Statement II is not the correct explanation for Statement ICorrect
• (C)Statement I is true, Statement II is false
• (D)Statement I is false, Statement II is true