Read the following information carefully and answer the questions which…

In coded blood-relation puzzles, each symbol stands for one direct family link (parent, child, sibling). Decode the chain one symbol at a time from the innermost relation outward, then combine the links using the standard rule: two people who share the same parent are siblings, and the child of your sibling is your nephew or niece.

1. 'W > X' means '>' = is the son of, so W is the son of X.

2. 'X < Y' means '<' = is the daughter of, so X is the daughter of Y.

3. 'Y * Z' means '*' = is the mother of, so Z is Y's child.

4. Since X and Z are both children of Y, X and Z are siblings (brother/sister).

5. W is X's son, so W is the son of Z's sibling — by the standard family-relations rule, this makes W the nephew of Z.

Comparing the other options by value:

• Uncle would require W to be a generation above Z (a sibling of Z's parent); here W sits a generation below X, so the generation does not match.

• Son would require a single direct parent-child link between W and Z; the chain instead places X between them, so this option skips a required link.

• Brother-in-law would require a marriage relation, but none of the six defined symbols (mother, father, sister, brother, son, daughter) encodes marriage, so this relation cannot arise from the given expression.