Write the following limit as a definite integral on the interval $2,7,$ where $c_i$ is any point in the $i$ th subinterval.

$\underset{|x|0}{lim}{\displaystyle \underset{i=1}{\overset{n}{}}}(-9c_i+4)x_i$

${\displaystyle \underset{2}{\overset{7}{}}}(-9x^2+4x)dx$

${\displaystyle \underset{2}{\overset{7}{}}}(-\frac{9}{2}{x}^2-4x)dx$

${\displaystyle \underset{2}{\overset{7}{}}}(-9x+4)dx$

${\displaystyle \underset{2}{\overset{7}{}}}(-9x+4)dx$

${\displaystyle \underset{2}{\overset{7}{}}}(-9x-4)dx$