No...it is not a proper noun.
B. 160
Ground pork should always be cooked at 160 degrees Fahrenheit
The correct answer is A. It starts with very specific details, devoid of any emotional interfering on the narrator's part. The only subjective detail in this line is the estimation "very strange". Still, it doesn't disturb the factuality of the context, which is firmly rooted in precise time and place references.
1. Wrist 2. Muscles 3.shoulder 4.presses
