Explanation:

Let’s walk through this together:

- Reema starts at her house, heads 4 km west.

- She turns right (which means she’s now facing north) and cycles 6 km.

- She turns right again (now facing east) and cycles X km. This gets her to school.

- So, let’s see: her total westward movement was 4 km, and now she’s moving back east for X km. If X was also 4 km, she’d be directly north of her starting point.

- Now, there's more: Point A is south of her school and 2 km west of her house.

- If her school was straight north after moving west, there’d be no extra “east” needed. But since Point A is specifically 2 km west of the house, her school is not directly in line.

- So, her house to Point A is 2 km west, and the path back from school is eastward.

- To get from 4 km west to 2 km west (relative to her house), she needs to go east 2 km — that’s X.

So out of the options:

Option 1: 6 km – way too far, that would take her past her original start point.

Option 2: 8 km – even further east, not right.

Option 3: 2 km – exactly the point, this lines up school with 2 km west of the house.

Option 4: 4 km – that would put school aligned with her house, not 2 km to the west.

Option 3: 2 km is the correct answer.