Suppose we made a simulation of a network of 10000 pyramidal cells and 2500 interneuror illustrating the four different status (SR, AI, SI fast oscillation and SI slow oscillation) of a spars recurrent network. Which statement below is false and please explain your reason (a) In the SR state, the network is almost fully synchronized and neurons fire regularly at high rates (b) In the fast oscillatory SI state, there is a fast oscillation of the global activity and neurons fire irregularly at a rate lower than the global frequency (c) In the AI state, the global activity is stationary and neurons don't fire. (d) In the slow oscillatory SI state, there is a slow oscillation of the global activity, and neurons firing irregularly at very slow rates