How many A and Bs are printed when this set of processes runs?

What is the smallest number of Ds that might be printed when this set of processes runs?

How many min numbers and max numbers of E and C can be printed it out ?

Semaphore R 1, S 3, T-0; /* initialization */ *process 3* P(T); printf ('D); V(R); /"process 4 * while(true) ( process 1process 2 P(S); printfr'A); while(true)while(true) { while(true) ( P(T); printf ('B'); printf (C); V(T); P(R); printf ('E'); V(T)