(2) The number of roots of the equation $10 \sin \left(x+\frac{\pi}{6}\right)=x$ is $(\quad)$.
(A) 8
(B) 7
(C) 6
(D) 5
(2) By the properties of the sine function, draw the graphs of $y=10 \sin \left(x+\frac{\pi}{6}\right)$ and $y=x$ simultaneously, noting that
$$
3 \pi-\frac{\pi}{6}<10<3 \pi+\frac{\pi}{2}
$$

and
$$
\left|-\frac{\pi}{6}-3 \pi\right|<10<\left|-\frac{\pi}{6}-3 \pi-\frac{\pi}{2}\right|,
$$

we can see that the two curves have 7 intersection points. Therefore, the answer is B.