Problem $1.$ In the following Verilog process A$,$ B$,$ C$,$ and D are all variables that have a value

of $0$ at time $=10$ ns$.$ If E changes from $0$ to $1$ at time $=20$ ns$,$ specify the time$($s$)$ at which each

signal will change and the value to which it will change. This these changes in choronlogical order.

always @$($E$)$

begin

A $<=$ #$51$;

B $<=$ A $+1$;

C $<=$ #$10$ B;

D $<=$ #$3$ B;

A $<=$ #$15$ A $+5$;

B $<=$ B $+7$;

end