The Adjective of Quantity 'some' is used when the noun is an uncountable, 'rice' is an uncountable noun. Hence option B is correct, 'some' denotes the quantity of rice. Option A is incorrect because the quality or kind of rice is not mentioned. Option C is incorrect because when we use 'some' as an Adjective of Number, it is followed by a countable noun, and the noun 'rice' is not countable, hence 'some' is not a Numeral Adjective in this context. Option D is incorrect because it denotes which specific noun, and not how much of it.