When in the course of human events, it becomes
necessary for one people to dissolve the political bands
which have connected them with another, a decent
respect to the opinions of mankind requires that they
should declare the causes which impel them to the
separation.

The question that is missing is "What does this quotation from the introduction of the Declaration of Independence do?

So the correct answer is A) it explains what the rest of the document will do.

The other options of the question were B) it acknowledges the authority of the monarchy. C) it lists the rights that nature gives all men. D) it states the colonist's lack of respect for Great Britain.

This quotation from the introduction of the Declaration of Independence explains what the rest of the document will do. This is so because the drafters of the Declaration, mainly Thomas Jeffferson and the other four, stated the many grievances and differences that made the colonists demand independence from the British crown. The Declaration of Independence was promulgated on July 4, 1776.