HELP PLEASE ! if right will mark as brainliest ! What are the real solutions to the equation 4x^3 - x^2 - 4x + 1 = 0?

A) x= -1, 1/4, 1
B) x= -1, -1/4, 1
C) x= -1,1
D) x= -1, 0, 1/4

Shannon mary and john earn a weekly allowance ahannon earns the amount that is 2/3 of what john earns mary earns an amount that is 1 2/3 of what johns earns 20 dollars a week who eaens the greatest allowance and who earns the least