Answer: Option (b) is the correct answer.
Explanation:
When an acid is added to a base then it results in the formation of salt and water.
For example, [tex]HCl + NaOH \rightarrow NaCl + H_{2}O[/tex]
Therefore, we can see that HCl being an acid reacts with base NaOH and results in the formation of sodium chloride (salt) and water.
Thus, we can conclude that out of the given options a reaction is monitored and the products are found to be a salt and water. The reactant(s) must have been an acid and a base.
