<span>It is letter B. Primary sources are direct records of a subject while auxiliary sources are any record of something that isn't an essential source. Distributed research, daily paper articles, and other media are normal optional sources. Secondary sources can, nonetheless, refer to both essential sources and auxiliary sources.</span>
It is d because people couldn’t find out if it was true or not
Answer:
I think the answer is problem and solution
Que debe ha bien las palabras claramente y oralmente <span />
