Consider the motion of the tip of the hours hand of a clock. After 12 hours 

1) Distance covered is zero     2) Displacement is zero

 3) Average velocity is zero     4) Average speed is zero

When we consider the motion of the tip of hour’s hand of a clock after 12 hours we get

i) Its displacement becomes zero

ii) Distance covered is not zero

iii) Average velocity becomes zero because displacement became zero

iv) Average speed will not be zero

So we get 2, 3 are true