A body is projected vertically upwards at time t = 0 and it is seen at a height H at time t1 and t2 second during its flight. The maximum height attained is (g is acceleration due to gravity)
A. g(t2−t1)² / 8
B. g(t1+t2)² / 4
C. g(t1+t2)² / 8
D. g(t2−t1)² / 4