Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : The naturalistic observation method is a valuable tool in child study.
Reason (R) : This method allows researchers to manipulate one variable and measure its effect on another, enabling them to draw conclusions about the causal relationships between variables.
In light of the above statements, choose the correct answer from the options given below.