This type of word may be used with a semicolon to connect independent clauses and usually serves as a transition between the clauses.

The correct answer is: A conjunctive adverb.

Explanation:

A conjunctive adverb is able to join two complete ideas, examples of conjunctive adverbs are:  

also besides consequently finally furthermore however indeed instead likewise meanwhile otherwise nevertheless next

And more.  

With conjunctive adverbs you use semicolons and not commas to connect the two clauses. Look at the following example in order for you to fully understand:

Louis’ apartment does not allow dogs and cats; otherwise, she would have had one with her since she moved in there.  

In 2081, everyone is equal not only in the eyes of the law but in every way; nobody is smarter, more athletic, better looking, etc. than anyone else. hazel is of average intelligence, which means she can't think about anything except in short bursts, and george has an intelligence way above normal.

The answer would be d.hope this !