Final answer:
A heterogeneous mixture is non-uniform and can be seen, like orange juice and a compact disc.
Step-by-step explanation:
A heterogeneous mixture is one that consists of two or more substances. It is non-uniform and the different components of the mixture can be seen. An example of a heterogeneous mixture is orange juice which contains particles of solid (pulp) as well as liquid. Another example is a compact disc, which is a solid material with regions of different compositions visible along its edge. Therefore, options C) and D) are true about heterogeneous mixtures.