A particle experiences constant acceleration for 20 s after starting from rest. If it travels a distance X1, in the first 10 s and distance X2 in the remaining 10 s, then which of the following is true?_x005F_x000D_

• A. X2 = 2X1
• B. X1 = 3X2
• C. X2 = X1
• D. X2 = 3X1