Three functions are shown below. Pick the option that lists one of the inflection points for each function i.e. the correct option lists three inflection points, an inflection point for each function. If a function has no inflection point, the correct option says "none" in place of an inflection point.

y=|x^2/3|, y=|(x-1)³|,y=|cos(x)|

choose from the following:

\f