Considering Figure, the data rate is 10Mbps, the distance between station A and C is 2500m, and propagation speed is 2 x 108m/s. Station A starts sending a long frame at time t1 = 0; station C starts sending a long frame at time tz = 3us. The size of the frame is long enough to guarantee the detection of collision by both stations. Find i. The time when station C hears the collision (tz) ii. The time when station A hears the collision (14) iii. The number of bits station A has sent before detecting the collision. iv. The number of bits station Chas sent before detecting the collision. B D