Find the Inflection Points for the Function Given $f(x)=5 x+2-\sin x$

Multiple Choice

Find the inflection points for the function given. $f(x) =5 x+2-\sin x$ , $0<$$x<$$3 \pi$

A) $(\pi, 5 \pi)$ , $(2 \pi, 10 \pi+2)$
B) $(\pi, 5 \pi+2)$ , $(2 \pi, 10 \pi+2)$
C) $(\pi, 2)$ , $(2 \pi, 10 \pi+2)$
D) $(\pi, 5 \pi)$ , $(2 \pi, 10 \pi)$
E) $(\pi, 5 \pi+2)$ , $(2 \pi, 10 \pi)$