Which of the Following Statements About Heterogeneous and Homogeneous Mixtures

Which of the following statements about heterogeneous and homogeneous mixtures is correct?

A) It is possible to have heterogeneous mixtures in which all the components are liquids.
B) A homogeneous mixture contains visibly different parts, or phases.
C) All of the phases in a heterogeneous mixture must be in the same state.
D) No two phases in a heterogeneous mixture can be in the same state.