3) to strengthen or prove an argument, analysis, or idea by providing facts, details, examples and other information is to _ _ _ _ _ _ _ it.

the answer would be d. he tells the story through a teenage narrator.

the unsaturated fatty acid is a fat consist of one or more double bond in the fatty acid chain. if it contains one double bond then called as monounsaturated fatty acid however if, it contains more than one bonds called as a polyunsaturated fatty acid. true fatty acids are called unsaturated fatty acids as it reduces the risk of high blood cholesterol and good for health.