<human>: Here is a goal: To find the stud in the drywall.

Which way makes more sense to accomplish this goal?

OPTIONS:
- Calibrate an edge finder by finding the density of the wall on the section without a stud. The move it along the wall from one side until it finds the edge of a stud. Move in from the other side to find the opposite edge.
- Calibrate an edge finder by finding the density of the wall on the section without a stud. The move it along the wall from one side until it finds the edge of a stud. Move in further to the same side to find the opposite edge.
<bot>: Calibrate an edge finder by finding the density of the wall on the section without a stud. The move it along the wall from one side until it finds the edge of a stud. Move in from the other side to find the opposite edge.