I believe the answer is D as well. Hope this helps
Jake likes cupcakes MORE than cake because they are BETTER. More and better are both comparative words.
Superlative would be words like "the best" "most"-basically the most extreme positive adjective for things.
Discourse markers are words and expressions that help to connect ideas and show that a discourse is well produced. Also, it helps to show a logical sequence of events. In sentence (D) the writer uses sequential organization connectors: “First,” “Then,”
Some other connectors are: First(ly)…., second(ly)….etc.; lastly; finally; To begin with,…
it's foreshadowing
i just got this right on edmentum