Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: For moisture estimation by air oven method, fine/coarse grinding of seeds, instead of using whole seeds, is obligatory in some species
Reason R: Bigger-sized seeds fail to completely expel all the moisture from the inner tissues during drying, hence grinding become necessary.
In light of the above statements, choose the correct answer from the options given below: