I believe this would be an anachronism.
Answer:
The place(s) where events take place
Explanation:
Discussing techniques used in the ad. The paragraph explains the target audience with correct grammar and the order of the content is fine. The paragraph doesn't discuss what techniques the ad used to be successful, however.
Answers:
1. the word that joins the two parts is "and"
2. the subject is "they"
Explanation:
1. the words joining compound sentences can be easily remembered using the acronym 'fanboys': for, and, nor, but, or, yet, so
2. the subject of a sentence is the person/thing that is doing or being something
i hope this helps! :D