Which knot wraps around an object and remains secure when the object is removed?

The correct answer is a hitch, as this type of knot is specifically designed to secure itself to an object and maintain its integrity even after the object is removed. A hitch typically involves wrapping a rope around another object, which allows it to hold firm under tension. Because a hitch relies on friction and wrapping, it will stay secured where it has been tied, even if the object it is wrapped around is pulled away.

In contrast, a loop does not inherently secure to an object; it forms a closed or open circle in the rope, used for attaching but does not remain secure on its own when the object it is connected to is removed. Likewise, a bight refers to a simple fold in the rope and is often used to create hitches or to tie other knots, but it doesn't involve wrapping around an object directly and won’t secure itself. Finally, the running end refers to the part of the rope that is being worked with during the knot-tying process and does not indicate a type of knot or a securing method. This highlights why a hitch is the correct answer for securing around an object and remaining effective once the object is no longer present.