Which of the following is an example of a CV over-the-counter quantity?

The correct choice highlights a product that adheres to specific regulations regarding the over-the-counter sale of controlled substances. In the context of Connecticut's regulations and the classification of drugs, the limitation on the quantity of certain substances that can be sold without a prescription is crucial. Cough syrups containing certain types of substances may be regulated as controlled substances due to their potential for abuse and misuse.

Stoker's expectorant, which is indicated in option B, represents a formulation that, when sold in an over-the-counter setting, must conform to specific quantity restrictions laid out by state and federal law, particularly if it contains ingredients that could be classified as controlled substances or if the product's formulation raises concerns about potential abuse.

In contrast, the other choices refer to products or quantities that may either exceed allowed limits for CV substances sold over-the-counter or do not fall into a category that would classify them as controlled in a way that requires limitation. Recognizing these parameters is essential for ensuring compliance with legal requirements for dispensing and selling medications in an over-the-counter scenario.