General Studies · Word Formation

In the question below, some letters are given in two ovals intersecting each other. The letter in the intersected portion is 'N'. The letters outside the intersected portion are 'B', 'C', and 'L'. The letter in the intersected portion can be used more than once, while each letter outside must be used exactly once to form a meaningful English word. If no such word can be formed, give 'X' as the answer; if more than one such word can be formed, give 'M'; otherwise, the second letter of the word will be the answer.