Barney was giving a speech on animal$-$borne diseases. When discussing each disease, his slides contained a definition, symptoms, risks, treatment and ways to prevent the disease. Was this an effective strategy?

D$)$ Yes, because he talked about each point he made in his visual aid.

A$)$ No$,$ because he didn't include a manageable amount of information.

B$)$ No$,$ because he should have included pictures of each disease.

C$)$ Yes, because he gave his audience all of the necessary information.