Concept:The pattern is: multiply the first number by 2, then add 2 to each following number.Explanation:For 4−8−10−12:4×2=8, 8+2=10, 10+2=12.For 3−6−8−10:3×2=6, 6+2=8, 8+2=10.So the required pattern is ×2, +2, +2.Check the options:Option A: 7×2=14, 14+2=16, 16+2=18î€ =20 → rejected.Option B: 10×2=20, 20+2=22, 22+2=24î€ =26 → rejected.Option C: 9×2=18, 18+2=20, 20+2=22î€ =24 → rejected.Option D: 1×2=2, 2+2=4, 4+2=6 → matches.Answer:Option D: 1−2−4−6