【单选题】Natural flavorings and fragrances are often costly and limited in supply. For example, the vital ingredient in a rose fragrance is extracted from natural rose oil at a cost of thousands of dollars a p...
A.
natural flavorings and fragrances are not quite dear
B.
the limitation of natural flavorings and fragrances is clear
C.
the supply of natural flavorings and fragrances is adequate to meet the demand
D.
the cost of producing natural flavorings and fragrances is high
【单选题】Natural flavorings and fragrances are often costly and limited in supply. For example, the vital ingredient in a rose fragrance is extracted from natural rose oil at a cost of thousands of dollars a p...
A.
natural flavorings and fragrances are not quite dear
B.
the limitation of natural flavorings and fragrances is clear
C.
the supply of natural flavorings and fragrances is adequate to meet the demand
D.
the cost of producing natural flavorings and fragrances is high