Concept:The pattern is: half of the first number plus 2 equals the second number.Explanation:For the first pair: (930÷2)+2=465+2=467For the second pair: (1248÷2)+2=624+2=626Now for the missing pair, let the first number be X. (X÷2)+2=284Subtract 2 from both sides: X÷2=282Multiply both sides by 2: X=564Answer:564 (Option D)