Step 1: Analyzing the clues.
The clues are: Leg, Protect, Wing, and Mar. We need to find a word that connects to all of them.
Step 2: Exploring the alternatives.
(A) Arm: "Arm" could be related to "Leg," but it doesn’t connect with "Protect," "Wing," or "Mar."
(B) Spoil: "Spoil" doesn’t fit with any of the clues.
(C) Bird: A bird has a "Leg," it can "Protect" itself, it has "Wings," and "Mar" could refer to a bird being harmed or damaged. This fits all clues.
(D) Man: "Man" doesn’t connect to "Wing" or "Mar."
(E) Last: "Last" doesn’t fit with any of the clues.
Step 3: Conclusion.
The correct answer is (C) Bird, as it relates to all four clues.