The sentence “…. Lawyers enrolled at the Nigerian bar last year …. the year.” is a comparative sentence. It’s comparing the number of lawyers who enrolled at the Nigerian bar last year with the number who enrolled in some other year.

The correct option is "More/than". Here’s why:

• “More” is a comparative adjective used to compare the quantity or degree of something. In this case, it’s comparing the number of lawyers who enrolled at the Nigerian bar.

• “Than” is a conjunction used in comparisons. It’s used to introduce the second part of the comparison, which is “the year” in this case.

So, the completed sentence reads: “More lawyers enrolled at the Nigerian bar last year than the year.”

This sentence means that the number of lawyers who enrolled at the Nigerian bar last year was greater than the number who enrolled in some other year.