Complete the following sentence by using the correct Article from the options given below:

Honest men speak ________ truth.

the

The correct answer is OPTION 3 - THE

So, the complete sentence is: Honest men speak the truth.

The definite article "the" is used here because it refers to a specific truth that is universally recognized or considered truthful.
The sentence implies that honest men speak about a particular truth or truths in general.