Task: Question Answering
Input (English): Question: What is the probability R of randomly selecting an arrangement of the letters of the wordMEDITERRANEANin which the first letter is E and the last letter is R?

 Option A: 1/13

 Option B: 1/20

 Option C: 1/26

 Option D: 1/50

 Option E: 1/100
Output (English): Option C