In grammar, an interjection is a word used to display emotions, such as surprise, glee, anger, etc. In this case the word "Yummy" is being used to display eagerness to enjoy the dinner that smells so unbelievably good.
Option A, "Yummy", is your correct answer choice.
Hope that helped! =)
Option c. denial, sublimation, and projection
the outcome of these are all negative, resulting to communication barriers.
Think it this way. Should humans know everything or about everything, or are there certain things humans shouldn't know about?
You can take "in fact" out of the sentence to help with determine what type of sentence it is because it's a prepositional phrase. This leaves us with "Only a small percentage of Southern Africa is desert" which is a simple sentence.
D. Procrastinates. She puts off leaving the ball until later.