10. Which of the following four fatty acids has the highest melting point?
(A) CH3CH2CH2CH2CH2COOH
(B) CH3 CH2CH2CH2CH2 CH2CH2CH2CH2COOH
(C) CH3 CH2CH2CH2CH2 CH2CH2COOH
(D) CH3CH=CHCH2CH2COOH

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