Since time of flight depends on uv and vertical height is same for all therefore, uvwill be same for all. Hence, time of flight will be same.
A->4
B->4
(C) Since horizontal range is greatest for C therefore, uh will be greatest for (C)
C->3
(D)Since uv is same for all but uh is least for (A) therefore, launch speed will be least for (A)
D->1