**Core Concept**
The daily water requirement in children is estimated based on their body surface area (BSA). The Institute of Medicine recommends water intake based on BSA, which is a more accurate measure than weight or height alone.

**Why the Correct Answer is Right**
The correct answer is based on the calculation of water requirement per square meter of body surface area. The estimated water requirement is 1,600-2,000 ml/m^2/day. Given the child's BSA is 1 m^2, the estimated water requirement is approximately 1,600-2,000 ml. However, the closest option is 1,700 ml, which is the most appropriate choice.

**Why Each Wrong Option is Incorrect**
**Option A:** 1,300 ml is below the estimated requirement for a child with a BSA of 1 m^2.
**Option C:** 2,000 ml is above the estimated requirement for a child with a BSA of 1 m^2.
**Option D:** 2,500 ml is significantly above the estimated requirement for a child with a BSA of 1 m^2.

**Clinical Pearl / High-Yield Fact**
The Water Intake Estimation Formula is a useful tool for pediatricians to estimate a child's water requirement. This formula is based on the child's age and BSA, and it helps in calculating the ideal water intake for a child.

**✓ Correct Answer: B. 1700 ml**