Answer:
A. Because he has...
B. He is the....
C. The sustenance....
Explanation:
Mature Writing: Because he has unrivaled skills in the kitchen, there is nowhere I would rather consume my food than their dinner table.
This sentence has good vocabulary but is easy enough to understand.
Immature Writing: He is the best cook in town, and I love to have dinner at their place.
This sentence is very simple and doesn't have much different variation in vocabulary.
Overuse of Thesarus: The sustenance he concocts in the scullery is beyond compare, and I want to ingest no other nourishment than that which he provides.
I love the fact that this is an option :D This quite obviously is an overuse of thesarus.
Hope this helps :)