Answer:
The correct option is C.
Explanation:
According to the Pythagoras theorem, in a right angled triangle

From the given figure it is clear that the triangle ABC is right angled triangle. Where, CB is perpendicular, AC is base and AB is hypotenuse.
Using Pythagoras we get,





The length of the hypotenuse of the triangle is 17 cm. Therefore the correct option is C.