Fact 1: Jessica has four children Fact 2: Two of the children have blue eyes and two of the children have brown eyes. Fact 3: Half of the children are girls. If the first three statements are facts, which of the following statements must also be a fact

Fact 1:	Jessica has four children
Fact 2:	Two of the children have blue eyes and two of the children have brown eyes.
Fact 3:	Half of the children are girls.

If the first three statements are facts, which of the following statements must also be a fact?

I:	At least one girl has blue eyes.
II:	Two of the children are boys.
III:	The boys have brown eyes.

[A].	I only
[B].	II only
[C].	II and III only
[D].	None of the statements is a known fact

Answer: Option B

Explanation:

Since one-half of the four children are girls, two must be boys. It is not clear which children have blue or brown eyes.