Two particles undergo SHM along the same line with the same time period (T) and equal amplitude (A). At a particular instant one is at x = -A and the other is at x = 0 . If they start moving in the same direction then they will cross each other at

(i) $\mathrm{t}=\frac{4\mathrm{T}}{3}$ (ii) $\mathrm{t}=\frac{3\mathrm{T}}{8}$ (iii) $\mathrm{x}=\frac{\mathrm{A}}{2}$ (iv) $\mathrm{x}=\frac{\mathrm{A}}{\sqrt{2}}$