Statement I : The average speed of a body over a given interval of time is equal to the average velocity of the body in the same interval of time if a body moves in a straight line in one direction.

Statement II : Distance travelled by a body is equal to the displacement of the body.

If both statement I and statement II are true and the statement II is correct explanation of statement I
 

If both statement I and statement II are true but statement II is not the correct explanation of statement II
 

If statement I is true but statement II is false
 

IF statement I is false but statement II is true