Read the information given below and answer the question that follows. (i)…

Concept: In a family-tree (blood relations) puzzle, first place each person into a generation and assign gender purely from the direct relationship statements (parent, spouse, sibling); only once every person's generation and gender is fixed can a specific relationship — such as "children of X" — be read off with certainty.

Family tree diagram:

1. From (i) and (ii): the family of seven spans three generations with two married couples — a senior couple, and their married child forming the middle generation, whose own children form the third generation.

2. From (iii): Pratap is the father of Prashant and has two grand-daughters, so Pratap belongs to the senior generation, Prashant is his child, and Prashant's own generation must include a couple whose two children are girls.

3. From (vi): Abha and Ritu are the two grand-daughters of one of the housewives, studying in the 7th and 9th standard — these are that couple's two children.

4. From (v): Madhu's daughter-in-law Sumiti is married to a teacher, so Madhu is a mother-in-law — placing Madhu in the senior generation as Pratap's wife — and Madhu's son, married to Sumiti, is the teacher.

5. Since Pratap and Madhu's son (Sumiti's husband) is the teacher, and Prashant is already fixed as Pratap's child, Prashant is that son — so Prashant is the teacher married to Sumiti, and Abha and Ritu are their two daughters.

6. From (iv): Pooja is a doctor and the sister of a teacher; the teacher is Prashant, so Pooja is Prashant's sibling — the second child of Pratap and Madhu.

Cross-check: The complete family — Pratap, Madhu, Prashant, Sumiti, Pooja, Abha, and Ritu — is exactly seven people across three generations, with two married couples (Pratap-Madhu and Prashant-Sumiti) each having two children (Prashant & Pooja; Abha & Ritu), and both wives (Madhu and Sumiti) are housewives, so every clue holds together.

Madhu's children are Prashant and Pooja.