In a vernier calliper, one centimeter of the main scale is divided into 10 equal parts. The 10th division of the vernier scale coincides with the 9th divisions of the main scale. What are the pitch and least count of the instrument?
(A) 0.9 cm and 0.01 cm
(B) 0.1 cm and 0.09 cm
(C) 0.1 cm and 0.01 cm
(D) 0.9 cm and 0.09 cm