If one root of the equation Ax2+Bx+C = 0 is two and a half times the others, then which of the following is TRUE?

• A. $$7B^2= 3 CA $$
• B. $$7B^2 = 4 CA$$
• C. $$7B^2 = 36 CA $$
• D. $$10B^2 = 49 CA $$