553 + 173 - 723 + 201960 is equal to = ?

Answer: Option B

$$\begin{array}{rl}& \text{Let }a=55,\\ & b=17,\\ & c=-72\\ & a+b+c\\ & =55+17-72\\ & =0\\ & \therefore a^3+b^3+c^3-3abc=0\\ & \left(a+b+c\right)=0\\ & \text{Answer is }0.\end{array}$$