Free fall of a body, initially at rest in a given time. He uses this data to estimate g, the acceleration due to gravity. If the maximum percentage errors in measurement of the distance and the time are e₁ and e₂ respectively, the percentage error in the estimation of g is
A e₁+2e₂
B e₁+e₂
C e₁−2e₂
D e₂−e₁