Samara and Nia are exercising at the gym. They will each spend 30 minutes on their exercise programmes. Samara is walking at a steady pace on the treadmill. Nia is also on the treadmill but she is completing an interval training programme where she alternates between bursts of fast running and periods of steady jogging. What difference in breathing pattern will be observed in Nia as compared to Samara? (a) The depth of breathing increases and the breathing rate increases (b) The breathing rate increases but not the depth of breathing (c) The depth of breathing increases but not the breathing rate (d) Both depth of breathing and the breathing rate will remain same as Nia