Three of the following four are alike in a certain way and so form a group. Which is the one that does not belong to that group ?

Options

A. Uncle
B. Nephew
C. Brother
D. Cousin

Answer

To solve the question, we need to analyze the relationships represented by the four terms: Uncle, Nephew, Brother, and Cousin. We will identify which one does not belong to the group based on their familial relationships.

### Step-by-Step Solution:

1. **Identify the Relationships:**
- **Uncle:** A brother of one’s parent or the husband of one’s aunt.
- **Nephew:** The son of one’s sibling.
- **Brother:** A male sibling, sharing at least one parent with another person.
- **Cousin:** A child of one’s aunt or uncle.

2. **Categorize the Relationships:**
- **Blood Relations:** Brother (direct sibling relationship).
- **Extended Family Relations:** Uncle, Nephew, Cousin (these are all relations that are not direct siblings but are related through family connections).

3. **Determine the Odd One Out:**
- Uncle, Nephew, and Cousin are all relations that can be considered as part of the extended family. They do not share a direct sibling relationship.
- Brother, however, is a direct blood relation.

4. **Conclusion:**
- The term that does not belong to the group is **Brother** because it represents a direct blood relationship, while the others represent extended family relationships.

### Final Answer:
The one that does not belong to the group is **Brother**.