What is the difference between primary and secondary sources?

APrimary sources are very old, while secondary sources are created recently.
BPrimary sources are firsthand accounts, while secondary sources are created after the fact.
CPrimary sources are always reliable, while a secondary source's reliability depends on its creator.
DPrimary sources are created by regular people, while secondary sources are the work of experts.

Verified Answer :

The answer is A..... a primary source was present during an experience or time period. An example is an original document. A secondary source interprets and analyzes primary source. An example is a textbook, magazine or an article.

Answer:

I think its A

Explanation:

Because a primary source is an original document or other material that has not been changed in any way. It is a reliable first-hand account usually written at or near the time the event(s) occurred. Usually it was produced by someone with direct personal knowledge of the events that are described.