Let a = a = b= and b = Is b a linear combination of a, and a? OA. Yes, b is a linear combination. OB. No, b is not a linear combination. OC. We cannot tell if b is a linear combination. Either fill in the coefficients of the vector equation, or enter "NONE" if no solution is possible. (Note: sometimes vectors are denoted by bolding the variable instead of putting an arrow on top of the variable. So a and a both refer to the vector named "a".) a+ -5 -24 22 a