To construct a line segment bisector using the paper folding method, Melvin should follow these steps in the correct order:
- Option #2: Fold one endpoint of the line segment onto the other.
- Option #3: Unfold the paper and label the intersection of the fold and the line segment with a point.
- Option #1: Use a straight edge to draw a line through the point you have created.
This order will effectively bisect the line segment.