(A) in the employ of the operator of a farm in handling, planting, drying, packing, packaging, processing, freezing, grading, storing, or delivering to storage or to market or to a carrier for transportation to market, in its unmanufactured state, any agricultural or horticultural commodity; but only if such operator produced more than one-half of the commodity with respect to which such service is performed;
(B) in the employ of a group of operators of farms (other than a cooperative organization) in the performance of service described in subparagraph (A), but only if such operators produced all of the commodity with respect to which such service is performed. For purposes of this subparagraph, any unincorporated group of operators shall be deemed a cooperative organization if the number of operators comprising such group is more than 20 at any time during the calendar year in which such service is performed;
(C) the provisions of subparagraphs (A) and (B) shall not be deemed to be applicable with respect to service performed in connection with commercial canning or commercial freezing or in connection with any agricultural or horticultural commodity after its delivery to a terminal market for distribution for consumption; or