The correct answer is B indeed. It is an example of plain folks because the speaker appeals to the citizens of his town, and to the knowledge that he shares with the other members of the community. This strategy is quite basic, as shown by this example, because the author makes a claim that most people would agree with, without actually providing evidence or a series of logical arguments.
70% as a decimal is 0.70
To convert from a percentage to a decimal, you move the decimal point twice to the left
Hope this helps
It is a compound sentence, because this sentence consists of two independent clauses ('the lamp fell over' and '(the lamp) scared the cat"). Simple sentence would have only one independent clause.
Elizabeth Partridge connects Guthrie's life and his music by showing how he brought the events that occurred during his life into his lyrics.