Choose the word that is least like the other words in the group from the following: Shoulder, Foot, Finger and Elbow. Three of these refer to parts of the arm or hand, while one is a part of the leg.

Introduction / Context:
This is a simple classification question based on basic human anatomy. You are given four words that name different body parts: Shoulder, Foot, Finger and Elbow. Three of these are located on the upper limb (arm and hand region), while one is found on the lower limb (leg region). The question asks you to identify the body part that does not belong with the others and mark it as the odd word out.

Given Data / Assumptions:

• Shoulder: joint connecting the upper arm to the torso.
• Foot: lower extremity attached to the leg.
• Finger: one of the digits of the hand.
• Elbow: joint between upper arm and forearm.
• We group parts according to whether they belong to the arm and hand or to the leg and foot region.

Concept / Approach:
The upper limb of the human body includes the shoulder, arm, elbow, forearm, wrist and hand (including fingers). The lower limb includes the thigh, knee, leg, ankle and foot. In the given list, Shoulder, Finger and Elbow are all located on the upper limb, whereas Foot is a part of the lower limb. In odd one out questions, the item belonging to a different category or region is considered the least like the others and should be selected as the answer.

Step-by-Step Solution:
Step 1: Consider Shoulder.The Shoulder is the joint that connects the upper arm to the trunk of the body. It clearly belongs to the upper limb region.Step 2: Consider Finger.A Finger is one of the digits of the hand, which is the terminal part of the upper limb. So Finger also belongs to the upper limb.Step 3: Consider Elbow.The Elbow is the joint between the upper arm and the forearm. It is part of the arm region and again clearly linked to the upper limb.Step 4: Consider Foot.The Foot is the lower extremity of the leg, used for standing and walking. It belongs to the lower limb, not the upper limb.Step 5: Identify the odd word.Three items (Shoulder, Finger and Elbow) belong to the arm and hand region, while Foot belongs to the leg region. Therefore Foot is the odd one out.

Verification / Alternative check:
A quick mental diagram of the human body helps confirm the answer. If you imagine the skeleton or a basic body outline, you can place the Shoulder at the top of the arm, the Elbow in the middle of the arm, and the Fingers at the end of the arm. The Foot, however, clearly appears at the end of the leg near the ground. Since the question groups words by their location on the body, it is very clear that Foot belongs to a different limb than the others.

Why Other Options Are Wrong:
Shoulder: Located at the upper limb attachment and grouped with Elbow and Finger.
Finger: Part of the hand on the upper limb; it is consistent with the Shoulder and Elbow grouping.
Elbow: A joint in the arm region, again belonging to the upper limb category.

Common Pitfalls:
Because all four options are body parts, some candidates may initially feel that none stands out. However, the usual trick in such questions is to separate items by region or function. Whenever you see a mix of body parts, ask yourself whether they all belong to the same limb or the same system (for example, digestive, respiratory, skeletal). This simple check quickly reveals that Foot is from the leg region, while the others are from the arm and hand region.

Final Answer:
The odd word is Foot, because Shoulder, Finger and Elbow are parts of the upper limb, whereas Foot is part of the lower limb.