The value of ( 8.6 × 5.3 + 8.6 × 4.74.3 × 9.7 - 4.3 × 8.7 ) is :

Answer: Option D

Given expression :
$$\begin{array}{rl}& =\frac{8.6\times \left(5.3+4.7\right)}{4.3\times \left(9.7-8.7\right)}\\ & =\frac{8.6\times 10}{4.3\times 1}\\ & =20\end{array}$$