The sentence that contains a subordinating connection is D, the one that reads as follows: "as a result, we bought a cooler and made sandwiches for our trip back home". A subordinating connection, also known as subordinating conjunction, is a word or phrase that links a dependent clause to an independent clause. "As a result" is a subordinating conjunction that is used to introduce cause and effect relationships.
I think its the first one the sentence looks fine with out a comma.
I believe it is appreciative
Taught is in past tense, when you say he taught it means he has already done it
the main means of mass communication especially television, radio, newspapers, and the Internet regarded collectively. Media (the singular form of which is medium) is the collective communication outlets or tools that are used to store and deliver information or data.
Please give me brainliest!