Explanation:

- The given words are: BOY, CAT, RAT, MAT, SIT, PEN.

- Identify the first letter of the second word from the left: "CAT" starts with 'C'.

- Identify the first letter of the third word from the right end: "MAT" starts with 'M'.

- Count the number of letters between 'C' and 'M' in the English alphabet series:

- C (3), D (4), E (5), F (6), G (7), H (8), I (9), J (10), K (11), L (12), M (13).

- There are 9 letters between C and M: ['D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L'].

- Correct Option: 5, More than eight