Select the most appropriate option to fill in blank number 4.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. piece.
Piece refers to a single unit of something, especially when talking about products or items (e.g., a piece of cake, a piece of furniture, a piece of bottled water).
It fits grammatically and contextually to describe a single representative example of a bottled product.
Hence, the chosen option will be correct.