Concept: List all multiples of 3 from 1 to 45 in ascending order, then count up to the ninth position.Explanation:The numbers divisible by 3, arranged from smallest to largest, are:3,6,9,12,15,18,21,24,27,30,33,36,39,42,45Counting from the top:1st = 3, 2nd = 6, 3rd = 9, 4th = 12, 5th = 15, 6th = 18, 7th = 21, 8th = 24, 9th = 27Therefore, the number at the ninth place is 27.Answer: Option D: 27