Question

in the declaration of independence, thomas jefferson affirmed
the natural rights of all people.
the separation of church and state.
the end of all relations with britain.
the new system of government.

Explanation:

The Declaration of Independence, written by Thomas Jefferson, prominently asserts the natural rights of people (life, liberty, and the pursuit of happiness) as part of its core arguments. The separation of church and state was more associated with later documents/ideas, the end of all relations with Britain was a result but not the main affirmation in the way natural rights were, and the new system of government was established later (e.g., in the Constitution). So the correct option is the one about natural rights.

Answer:

A. the natural rights of all people.