If it is possible to make a meaningful word with the third, the sixth, the seventh and the tenth letters of the word STETHOPHONE write first letter of that word as the answer. If no such word can be made, give 'X’ as the answer, if more than one word can be made, give 'M' as the answer.
1) M
2) X
3) O
4) P
5) N

Explanation

1