What’s rising action in literature

What leads up to the problem

Explanation:

C. The deacidification process preserves pages by neutralizing acid with magnesium oxide, raising the pH level of the paper, and minimizing the alkaline reserve.

Explanation:

Commas are used to separate items in a list. It is most accepted to include a comma before the and to indicate the last item in the list. Although, some people choose to omit this comma.