Concept:In a number series, the difference between consecutive terms usually follows a fixed pattern.Explanation:Expected differences are +3,+6,+9,+12,+15.Using 482 as the first term: 482+3=485, then 485+6=491, 491+9=500, 500+12=512, and 512+15=527.The given term 486 does not fit; it should be 485.Answer:The odd term is 486, so the correct option is D.