Identify the type of error in sentence: the reason we are early is because my watch is fast.
a. definition structure
b. explanation structure
c. parallel structure
d. dangling construction
e. correct

Hi. The answer would be option B. Explanation structure

Explanation:

When explaining why you are early, having the words "the reason why" followed by "because" creates a dissonance. For this sentence to be correct, the word "because" should be exchanged for the word "that", so the right way to give an explanation would be "the reason why we are early is that my watch is fast".

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).

answer: common sense was the pamphlet that thomas paine used to convince reluctant americans to abandon the goal of reconciling with britain and to accept that independence was the only option to preserve their liberty.