Answer: c. single-replacement reaction.
Explanation:
Combination is a chemical reaction in which two or more than two substances combine to form a single product.
\(A+B\rightarrow AB\)
Decomposition is a chemical reaction in which one substance decompose to form two or more than two products.
\(AB\rightarrow A+B\)
A single replacement is a chemical reaction in which a more reactive element displaces a less reactive element from its salt solution, thus one element reacts with a compound to form a new compound and a different element.
\(A+BC\rightarrow B+AC\)
Double displacement is a chemical reaction in which ion exchange takes place.
\(AB+CD\rightarrow AD+BC\)
