Answer:
A. review information you have already read
Explanation:
Single displacement reaction is defined as the reaction in which more reactive element displaces a less reactive element from its chemical reaction. The reactivity of metal is determined by a series known as reactivity series. The metals lying above in the series are more reactive than the metals which lie below in the series
Is that the full question
how may i ask bc it does not say and how many points or something or am i taking this too literally