Given below are two statements, one labelled as Assertion (A) and the other labelled as Reason (R).
Assertion (A): In a double ring infiltrometer, the double ring avoids requirement of deep insertion into the soil.
Reason (R): The outer ring provides a buffer of infiltrating water, which leads to the force of infiltration below the inner ring remaining completely vertical and unidirectional.
In light of the above statements, choose the correct answer from the options given below.