Study the following information carefully and answer the given questions:

In a family of eight members, Harry is married to Grace. Alan is the only son of Grace, and Becky is Alan's sister. Emma is the wife of Alan. Fred is Emma's son. Chris is the husband of Becky, and David is Chris's son.

How is David related to Alan?

Correct Answer: Nephew

Step-by-Step Explanation:

Let's analyze the relationships given in the problem step-by-step:

1. Harry and Grace: Harry is married to Grace. (They are the parents/grandparents generation).

2. Grace, Alan, and Becky: Alan is the only son of Grace, and Becky is Alan's sister. This means Alan and Becky are siblings, both children of Harry and Grace.

3. Alan and Emma: Emma is the wife of Alan.

4. Alan, Emma, and Fred: Fred is Emma's son (and thus Alan's son).

5. Becky and Chris: Chris is the husband of Becky.

6. Chris, Becky, and David: David is Chris's son (and since Chris is married to Becky, David is also Becky's son).

Determining the relation between David and Alan:

Alan and Becky are brother and sister (siblings).

David is the son of Becky (Alan's sister).

The son of one's sister is their Nephew.

Therefore, David is the nephew of Alan.