The author's CHOICES for delivery are influenced by which of the following? * Select ALL that apply

their trust of the audience
what they ate before speaking
the audience they are speaking to
their situation or historical context
their tone of voice
if they are shy or outgoing
his/her purpose for speaking

the audience they are speaking to

their situation or historical context

his/her purpose for speaking

Explanation:

An author's choice of delivery is based on certain factors which includes (but is not limited to)

the audience they are speaking to, their situation or historical context, their purpose for speaking.

Delivery simply means the way person makes a statement or speech and if the purpose of such speech is to motivate the audience, the speaker may be inclined to speak animatedly, or if the purpose of the speech is to commiserate, then the method of delivery would likely be sombre and sad.

in june, we will have been married for eighteen months. (i am assuming this is what you want? the sentence, as you have presented it, is grammatically incorrect--   you want it corrected, yes? )

an expression designed to call something to mind without mentioning it explicitly; an indirect or passing reference.