Word formation from selected letters: From the word “CONTRIBUTION”, take the 2nd, 6th, 9th, and 12th letters (preserving their positions in the original word). If it is possible to form a meaningful English word using exactly these four letters, which of the following is the last letter of that word? If more than one such word can be formed, answer “M”. If no such word can be formed, answer “X”.

Introduction / Context:
This verbal reasoning item asks you to extract specific letters from a longer word and then check whether those letters can be rearranged to form a meaningful English word. The twist is that the options do not ask for the entire word; instead, they ask for the last letter of any such valid word, or for special markers when either multiple words are possible (M) or no word is possible (X).

Given Data / Assumptions:

• Source word: CONTRIBUTION.
• Required positions: 2nd, 6th, 9th, and 12th letters.
• Exactly these four letters must be used once each.
• If multiple valid words exist, choose M; if none exist, choose X.

Concept / Approach:
Extract the indicated letters by indexing the source word in order and then attempt to form common English words using those exact letters. Finally, identify the last letter of the valid word (if exactly one exists).

Step-by-Step Solution:

Verification / Alternative check:
Confirm that every letter of “INTO” is drawn from {O, I, T, N} and used exactly once, and that “INTO” is a standard English word. No competing ordinary dictionary words exist with exactly this set, so multiplicity (M) does not apply.

Why Other Options Are Wrong:

• T: Last letter “T” would correspond to a different target word not supported by the available letters.
• M: Multiple acceptable words do not arise here.
• X: At least one valid word (“INTO”) exists, so “X” is incorrect.
• None of these: The correct last letter is among the given options.

Common Pitfalls:
Including letters not from the specified positions; using a suffix or fragment like “TION” which is not a standalone word; overlooking the simple but valid construction “INTO”.

Final Answer:
O