In the word HEIRARCHICAL, If the first and second, third and fourth, fifth and sixth letters are interchanged up to the last letter, which are the two position from the left on which R would appear and on which positions would C appear twice?

A

R - 3 and 5; C - 8 and 9

B

R - 9 and 10; C - 4 and 5

C

R - 4 and 5; C - 7 and 8

D

4 and 5; C - 7 and 8