From a high tower at time 𝑡 = 0, one stone is dropped from rest and simultaneously another stone is projected vertically up with an initial velocity. The graph of the distance 𝑆 between the two stones, before either his the ground, plotted against time 𝑡 will be as

Question : From a high tower at time 𝑡 = 0, one stone is dropped from rest and simultaneously another stone is projected vertically up with an initial velocity. The graph of the distance 𝑆 between the two stones, before either his the ground, plotted against time 𝑡 will be as