Compare and contrast the growth of bacteria in different physical types of media

There are three physical types of media, theses are solid, liquid and semi-solid.
In liquid media, growth occur throughout the media. In solid media, there  are firm surfaces for bacteria to form discreet colonies. This type of media usually contain 1-5% agar. For semi-solid media, this type of media has soft constituency at room temperature and does not flow freely.

Ithink the answer is c. i’m not sure though i’ll notify you when i have an exact answer!