MCQ
Let $f:(a, b) \rightarrow R$ be twice differentiable function such that $f(x)=\int_{a}^{x} g(t) d t$ for a differentiable function $g(x) .$ If $f(x)=0$ has exactly five distinct roots in $(a, b)$, then $g(x) g^{\prime}(x)=0$ has at least:
- ✓seven roots in $(a, b)$
- Bfive roots in $(a, b)$
- Cthree roots in $(a, b)$
- Dtwelve roots in $(a, b)$
