The correct answer is D. Physical setting
Explanation:
In public speaking, the physical setting refers to the physical context in which a speech is going to be delivered and the elements that composed it including the lighting, decoration, size room, temperature and seating arrangement for the audience. All these elements should be carefully considered by the speaker as it can affect the engagement of the audience, for example, a physical setting where there is background noise or one in which the audience has not good visibility of the speaker can create distractions and affect the speech. Considering this, the element that is related to lighting and background noise that can affect the way a speech is received by the audience is the physical setting.
