2. The equation $|2 x-5|+|3 x-7|+|5 x-11|=\frac{2015}{2016}$ has $\qquad$ real roots.
A. 0
B. 1
C. 2
D. 3 or more than 3
Let $f(x)=|2 x-5|+|3 x-7|+|5 x-11|$
$\Rightarrow f(x)_{\min }=\min \left\{f\left(\frac{5}{2}\right), f\left(\frac{7}{3}\right), f\left(\frac{11}{5}\right)\right\}=1>\frac{2015}{2016}$, so the equation has no real roots, hence the answer is $A$.