What does it mean to present a quotation in blocked text?

Use the dictionary entry for crude to answer the question crude use context clues to choose the sentence that best uses the fourth definition of the word crude. crude ['krüd) adj from latin crudus 1. the quality of being unchanged from the original state 2. the quality of being primitive or uncultured 3. the quality of being obvious 4. the quality of being rough in execution rather than being subtle, selma was rather crude in the way she conducted herself at the meeting. elijah and his brother quickly built a crude shelter that would keep them warm and dry through the night. thelma's knowledge of art and poetry showed the rest of the diners that she was far from crude. there was oil to be found on the property, but it was crude and would need to be processed. mark this and return save and exit next submit

Me determine which are quote or paraphrase.

What is the italicized part in the sentence , all of the operators are efficient.