Which of the following statements is true about f(x)?

The correct option is D.

Step-by-step explanation:

A point is called relative maximum if it is higher than the points directly beside it on both sides. In other words, the maximum point over a small interval is called relative maximum.

A function can have more than one relative maximum. It is also known as local maxima.

A point is called relative minimum if it is a point that is lower than the points directly beside it on both sides. In other words, the minimum point over a small interval is called relative minimum.

A function can have more than one relative minimum. It is also known as local minima.

From the given graph it is cleared that F(x) has relative maximum at x=-1 and a relative minimum at x=0.8.

Therefore the correct option is D.