20. Which of the following sentences correctly punctuates?
A However, the fact that such a change is taking place, and that this change will likely be complete within
the next few years—can not be denied.
B However, the fact that such a change is taking place—and that this change will likely be complete within
the next few years—can not be denied.
C However, the fact that such a change is taking place, and that this change will likely be complete within
the next few years; cannot be denied.
D However, the fact that such a change is taking place and that this change will likely be complete within
the next few years, cannot be denied.