Correct Answer: Diluted acetic acid

Solution : The correct answer is Diluted acetic acid.

Vinegar is a diluted acetic acid solution often comprising 4-8% acetic acid in water. Glacial acetic acid, on the other hand, is pure acetic acid in its concentrated state and often appears as a clear, colourless liquid. Although vinegar includes Acetic acid, it differs from glacial acetic acid due to its lower concentration and the presence of other components in the solution.