How can conjunctive adverbs help achieve coherence? They don't illustrate a relationship.
They provide clarity for the meaning of a preceding noun.
They illustrate the connection between two ideas.
They introduce relative clauses.

They illustrate the connection between two ideas.

Explanation:

A conjunctive adverb is used to create a smooth connection between two sentences or independent clauses. The conjunctive adverb shows the logical relationship between one idea and the next and thus helps to provide coherence in a written text.

Hope this helps!

the answer can be "credo" it means to believe = the word credo means "an official statement of beliefs"