详解
Choice A is the best answer. In lines 17-29("Society... perfection"), Burke argues that "subordinate contracts," are simply business agreements over traded goods, while the state is not merely "a partnership agreement in a trade . . . or some other such low concern . . . but a partnership in all science; a partnership in all art; a partnership in every virtue, and in all perfection." In this context, Burke is stating that the state is not a contract consisting of "low"or petty concerns.
Choices B, C, and D are incorrect because in this context, "low" does not mean weak, inadequate, or depleted.