select the correct answer.\nwhat is the variable being tested in an experiment?\na. explanatory variable\nb…

select the correct answer.\nwhat is the variable being tested in an experiment?\na. explanatory variable\nb. placebo\nc. control variable\nd. response variable

select the correct answer.\nwhat is the variable being tested in an experiment?\na. explanatory variable\nb. placebo\nc. control variable\nd. response variable

Answer

Brief Explanations:

The explanatory variable is the one being manipulated or tested in an experiment to see its effect on another variable. A placebo is a non - active substance used in control groups. A control variable is held constant to ensure it doesn't affect the outcome. The response variable is what is measured as a result of changes in the explanatory variable.

Answer:

A. explanatory variable