If a = 2.361, b = 3.263, and c = 5.624, then the value of a3 + b3 - c3 + 3abc is?

Answer: Option C

$$\begin{array}{rl}& a=2.361\\ & b=3.263\\ & c=5.624\\ & a+b-c=0\\ & 2.361+3.263-5.624=0\\ & 0=0\\ & \therefore a^3+b^3-c^3+3abc\\ & \Rightarrow 0\end{array}$$