What best describes the N$-$stage sequential circuit below?

$[43]$

Question $10$Select one:

a$.$

synchronous counter with $2$N$2$N states

b$.$

synchronous counter with fewer than $2$N$2$N states

c$.$

asynchronous counter with $2$N$2$N states

d$.$

asynchronous counter with fewer than $2$N$2$N states

e$.$

sequential circuit that cannot be classified as a counter