To answer this question, let's analyze the given information:
The boy leaves his house and runs into the woods to his grandmother's house, and it is stated that he reached his grandmother's house.
The question asks how far the boy ran into the woods.
The correct answer is B) Halfway.
Explanation:
If the boy reached his grandmother's house, it means he ran all the way to her house. Therefore, the distance he ran into the woods is halfway, as he had to cover the full distance to reach his destination.