1. Given $\triangle A B C$ is an acute triangle,
$$
\begin{array}{l}
f(x)=-x^{2}+2 x+m, \\
p=\sin A+\sin B+\sin C, \\
q=\cos A+\cos B+\cos C .
\end{array}
$$

Then ( ).
(A) $f(p)>f(q)$
(B) $f(p)=f(q)$
(C) $f(p)<f(q)$
(D) Any of the above three cases is possible