Answer : The correct option is, (C)
Explanation :
A.
This is synthesis reaction in which the two or more reactant react to give a single product.
B.
This is combination reaction in which the two reactants combine to form a single product.
C.
This is a neutralization reaction in which an acid react with a base to give a salt and water as a product.
D.
This is a double displacement reaction in which the positive cation and negative anion of two reactants exchange their places to give two new products.
Hence, the reaction (C) is a neutralization reaction.