Answer: The word "invigorating" would leave the reader with a more positive impression about the coffee than the word "acidic."
Explanation:
The adjective "acidic", in this context, is used to describe a drink that has a sour taste. If a coffee is sour, it means that it is not prepared properly, or that the coffee prepared is of a low quality. On the other hand, word "invigorating" has a more positive connotation. If something is invigorating, it gives us strength and makes us full of energy. This is exactly what people usually expect from a coffee. Having this in mind, word "invigorating" would certainly leave a reader with a positive impression about the coffee and its smell.
In "Metamorphosis" by Franz Kafka Gregory Samsa is transformed into an insect. Nobody would help him until his family listen to his voice and call the doctor and the locksmith for help. Gregor believed that either the doctor or the locksmith would help him which makes him a person of faith or a believer.