Final answer:
The type of line that connects a comment to the object's location with a thin line is a dashed line. Dashed lines are used in drawings to link annotations to specific elements without obscuring the details of the drawing.
Step-by-step explanation:
The type of line that connects a comment to the location of an object with a thin line is a dashed line. In drawing or noting, dashed lines are typically used to indicate a connection between an annotation and a specific part of a drawing without obscuring the actual drawing details. They are less visually dominant than solid lines, maintaining the clarity of the drawing while still providing the necessary link.
For example, in engineering or architectural drawings, when details of a particular component need to be highlighted and explained, a dashed line can be extended from the comment or note to the specific detail without covering or interfering with the view of the detail itself.