Answer: The correct answer is Option B.
Explanation:
Synthesis reaction is defined as the reaction in which two or more substances combine in their elemental state to form a single compound.
The general equation representing this reaction follows:
[tex]A+B\rightarrow AB[/tex]
As, number of reactants in this type of reaction will always be more bacuse a single product is forming in this reaction.
Thus, the correct answer is Option B.