Answer:
None of Hrothgar's men wanted to challenge Grendel because they believed the only way to survive is that "distance was safety", and "those who fled him", survived.
Definition 1 would best fit.
You have key words such as "whole" and "electronic devices" (note devices is plural). So it's talking about a whole bunch of electronic devices. So definition 1
"A large variety or assortment of things" would best fit.
The correct answer here would be jargon. For example, in a job that
involves a lot of work with computers, it might be said that there is a
lot of technological jargon involved in day to day working life.
The correct answer is c. " Your youthful beauty will not dissapear."