When would you use American Standard English in a professional setting?

Only in formal settings

Explanation:

I saw that you needed help so I did this assignment and got this answer right. I am sorry I am late answering it. The reason you only use it in formal settings is because it is formal English and should not be used anywhere but formal settings.

i believe the answer is: b. mr. head had a long, tube-like face with a rounded open jaw and a short depressed nose.

this is because in the un-revised sentence it said that mr. heads face was long and tube-like, and he had a rounded open jaw. this is not a very grammatically correct because of how it seems to drag on with the and, replaced with, with, makes it sound more fluent in the description.