In the following question, a group of letters is given which are numbered 1, 2, 3, 4, 5 and 6. Below are given four alternatives containing combinations of these numbers. Select that combination of numbers so that letters arranged accordingly, form a meaningful word.
C E L S M U
1 2 3 4 5 6
Option:
A. 4, 6, 3, 5, 2, 1
B. 5, 6, 4, 1, 3, 2
C. 4, 6, 5, 2, 3, 1
D. 5, 2, 3, 1, 6, 4