B is the brother of A and E is the brother of D. D is the father of B. In this blood relation question, how are E and A related?

Introduction / Context:
This question gives three simple relationships and asks how two people, E and A, are related. B and E are each described as brothers of someone else, and D is said to be the father of B. By connecting these facts, we can position each person in a small family tree and determine the relationship between E and A.

Given Data / Assumptions:
• B is the brother of A.• E is the brother of D.• D is the father of B.• Family relations follow standard patterns.

Concept / Approach:
We first identify the parent child relationships. Since D is the father of B and B is the brother of A, D is also the father of A. Thus A and B are siblings and D is their father. E is the brother of D, so he is an uncle to D's children. Since A is one of D's children, E is the paternal uncle of A. This gives a clear answer: E is the uncle of A, and A is the nephew or niece of E, depending on A's gender.

Step-by-Step Solution:
Step 1: From "B is the brother of A," note that A and B are siblings.Step 2: From "D is the father of B," we see that D is a parent of B.Step 3: Since A is B's sibling, they share the same father D, so D is also the father of A.Step 4: From "E is the brother of D," we know E and D are siblings.Step 5: Therefore E, being D's brother, is the paternal uncle of D's children A and B.Step 6: So E is the uncle of A.

Verification / Alternative Check:
Draw the family: place D and E as brothers in one generation. Place A and B as the children of D. The line from E to A is that of an uncle to a niece or nephew. There is no other description that matches all the clues as consistently as E being the uncle of A.

Why Other Options Are Wrong:
E is brother of A: Brothers share parents and would be in the same generation, but E is in the generation above A as D's brother.A is nephew or niece of E: This is true, but the option asks how E and A are related, and the more direct statement is that E is the uncle of A. The chosen answer uses E as the subject.E is father of A: The father of A is D, not E.E is grandfather of A: There is no indication that E is one generation above D; he is D's brother, not his father.

Common Pitfalls:
Occasionally candidates mistake E for another parent of A or B due to the repetition of brother in the statements. However, focusing on the father role of D and seeing that E is explicitly only a brother of D clarifies that E must be an uncle, not a parent or grandparent. Drawing a simple diagram can quickly eliminate confusion.

Final Answer:
E is the uncle of A.