Tip: Further is a comparative form of far. It is also a verb.
adverb
Usage: Far has two comparatives, farther and further, and two superlatives, farthest and furthest. Farther and farthest are used mainly in sense far 1 (sense: 1), and are dealt with here. Further and furthest are dealt with in separate entries.
I would pick D) also known as the Big Apple, New York City is a lively, colorful city full of sounds
Answer:
"Contains a miracle ingredient"
Explanation:
Glittering generalities in advertising are phrases that are very positive and attractive to customers, and they bring general approval towards a product without much information to back it up.
This phrase is the best example of a glittering generality because it mentions a "miracle" ingredient, something that is very positive and will be attractive to customers.