Which of the following carries would be least effective in terms of firearm control?

The cradle carry is considered the least effective in terms of firearm control because it does not provide a secure grip or a stable position for handling the firearm. This carry method involves holding the gun across the arms or body, which can lead to a lack of control over the muzzle direction and an increased risk of an accidental discharge.

In contrast, other methods like the two-handed or "ready" carry allow for better stability and control over the firearm, keeping it pointed in a safe direction while enabling quick access for shooting if necessary. The sling carry supports the firearm securely against the body, allowing for hands-free movement while maintaining better firearm control. The shoulder carry provides a more secure hold and better control compared to the cradle carry, especially when navigating through varying terrain or other obstacles. Thus, the cradle carry, while it might be comfortable in some contexts, does not prioritize safety and control in the same way that other carries do.