​Which of the following is a visual immediacy behavior?

A) Citing personal experience during a conversation. 
B) Using good volume,pitch,emphasis and rate.
C) Smiling appropriately at individuals as well as the whole group.
D) ​Sitting quietly behind a barrier such as a desk.

Visual Immediacy

The impact or appeal that visual elements have in conveying messages or information quickly and effectively to an audience.

Smiling Appropriately

The act of using a smile at the right moments to convey friendliness, confidence, or satisfaction in a socially acceptable manner.