Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R Assertion A: When the water moving downward through a fine textured soil encounters a layer of course sand, the downward movement is temporarily increased until the soil suction in wetting front is sufficiently reduced.  Reason R: Presence of large macrospores in the coarse sand are too large to take in water from the unsaturated microspores of the soil rapidly. In light of the above statements, choose the most appropriate answer from the option given below