Answer:
Option c)calcium carbonate solutions are basic and neutralize the acid rain.
Step-by-step explanation:
A neutralization reaction is one in which an acid (or an acid oxide) reacts with a base (or basic oxide). In the reaction a salt is formed and in most cases water is formed. A Salt is an ionic compound formed by the union of ions and cations through ionic bonds. In this reaction the base provides the cation and the acid the anion
So:
acid + base ⇒ salt + water
Neutralization reactions are generally exothermic, which means they release energy in the form of heat.
Then calcium carbonate CaCO3 solutions are basic and neutralize the acid rain.