Answer:
Option b, Tea
Step-by-step explanation:
Tea is a homogeneous mixture of tea extract, milk, sugar and water. Tea extract, milk and sugar are water soluble and hence, make a homogeneous mixture.
Homogeneous mixture is a mixture of two or more components having same proportions of components through out the sample.
Mercury is an element not a mixture.
Water is a compound. Compound is formed by two or more element chemically bonded to each other. It is a pure substance not a mixture.
Similarly, alcohol is also a compound not a mixture,
So, among the given options, tea is a homogeneous mixture.