in an experiment, what do researchers manipulate in order to determine its effect?\nindependent…

in an experiment, what do researchers manipulate in order to determine its effect?\nindependent variable\ncorrelation\nhypothesis\ndependent variable
Answer
Brief Explanations:
In an experiment, researchers manipulate the independent variable to observe its effect on the dependent variable. A conclusion is the result of the experiment, and a hypothesis is a proposed explanation before the experiment.
Answer:
A. independent variable