Triangle ABC is right angled at B. What is the value of AB + BC? I. Diameter of the circle inscribed in the triangle ABC is 10 cm. II. Diameter of the circle circumscribing the triangle ABC is 27 cm.

• A. The question can be answered by using one of the statements alone, but cannot be answered using the other statement alone.
• B. The question can be answered by using either statement alone.
• C. the question can be answered by using both statements together, but cannot be answered using either statement alone.
• D. The question cannot be answered even by using both statements together.