Which of the following is true about centered alignment? A. It aligns both sides of a paragraph

B. Is relatively readable alignment when the line width is the correct size for the font size

C. It is the most readable alignment

D. It is the least readable alignment and should be reserved for brief lines of text rather than full paragraphs

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Explanation:

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the answer is b and c

type of error:

the error in the sentence is a "dangling modifier". a dangling modifier is a phrase, word or clause that "dangles" because there is not target to modify. in this case, "after mopping the floor" is the dangling modifier since it has no word to modify. the noun "house" cannot mop the floor; therefore there is a mistake in the writing of the sentence.