Below Are the Graphs of (I) $f(x)$ , (Ii) $f^{\prime}(x)$ , and (Iii)

Multiple Choice

Below are the graphs of (i) $f(x)$ , (ii) $f^{\prime}(x)$ , and (iii) $\int_{0}^{x} f(t) d t$ (not necessarily in that order) . Which one is the graph of (iii) ?

A) The first one.
B) The third one.
C) The second one.