Assuming that no clock skews, compute the maximum frequency that the circuit can be

run. Show all relevant work. Leave the answer in form of $1/$T$.(15$ points$)$

b$.$ Suppose $1=3$ ns$,2=1$ ns$,3=4$ ns$.$ Are there any hold time violations? If so$,$ what could

be a possible solution? Show all relevant work. $(15$ points$)$