Which of the following is NOT an example of an upright grappling body hold?

An upright grappling body hold typically involves maintaining a standing position while exerting control over an opponent, using body leverage to manipulate their position. In this context, the choices presented can be evaluated to determine which one does not fit the criteria of an upright grappling hold.

When considering the examples provided, a leg sweep is a technique that involves taking an opponent's leg out from under them, which usually results in both individuals being on the ground rather than in an upright position. This action fundamentally changes the dynamics of the engagement from standing grappling to ground fighting, thus disqualifying it as an example of an upright grappling hold.

In contrast, the other options, such as escapes from various holds, maintain an element of standing grappling. These involve techniques designed to regain control or neutralize an attack while remaining upright, aiming to maneuver effectively within that vertical space. The rear body hold and escapes from chokeholds or headlocks clearly belong to techniques employed in an upright position, reinforcing the definition of what constitutes an upright grappling body hold.

Thus, the option involving the leg sweep stands out as the only choice that does not conform to the definition of an upright grappling body hold.