A glittering generality is a vague word or phrase that's used to evoke positive feelings rather than to convey information.
I
A True
B
False

the following key ideas correctly express the key sentence.

restate key idea: most people can learn to swim in ten short lessons.

restate key idea: the majority of water-accident victims require mouth-to-mouth breathing.

restate key idea: an empty, tightly closed gallon jug will support a tired swimmer.  

restate key idea: first aid is to prevent accidents as well as assist in rescue.

explanation: the key idea needs to have the same topic as the key sentence (drowning and safety).

a. googly eyed

explanation:

the term "googly eyed" just sounds humourous to us. : )