Answer: D) They had not seen the experiment, yet they knew the results.
Explanation: a conjunction is a an uninflected linguistic form used to connect clauses, phrases, words or sentences or to coordinate words in the same clause, for example: and, if, so, yet, but, or, nor, etc. In the given sentence we can see an example of a conjunction in the word "yet" it is joining two independent clauses: "they had not seen the experiment" and "they knew the results."
If I were President of the United States what would you do in your first 100 days, I would eliminate as much regulation and taxation of business and individuals as possible, ensure proper funding for the military as much as possible, ensure proper border security as much as possible.
Ungrammatical is the answer because of the incorrect use of pronouns.
