The correct answer is B.
Step-by-step explanation
The multiplicity simply tells us how many times the roots repeat or how many times the factor multiplies itself in the polynomial.
is multiplying itself three times, so its root -4 has multiplicity of 3.
repeats once so its root 10 will have a multiplicity of 1.
Also, for the leading coefficient to be 2 then the constant factor should be 2.
Hence the correct answer is option B