Answer:
Based from the definition of terms presented, the following is the answer to the questions.
1. B. The study of statistics such as birth rate and death rate.
2. B. A group of symptoms that occur together.
I like it! That’s so cool!
It won’t let me send it to you
A source that is a trustworthy authority on a subject is a credible source.
The commas must be placed both before and after the nonessential element. For example...
My mom, who hates cooking, ordered takeout.
"who hates cooking" is the nonessential element, and you can see that a comma goes before and after it.
