The safest method for loading a blade on a knife handle is:

A. Holding the blade with your fingers and sliding it onto the handle.
B. Placing the blade on a flat surface and pressing the handle onto it.
C. Using a special tool to attach the blade to the handle.
D. Asking someone else to attach the blade for you.

The safest method for loading a blade into a knife handle is by using a special tool designed for this purpose, which minimizes direct contact with the blade and reduces the risk of injury.

Explanation:

The safest method for loading a blade on a knife handle is c) Using a special tool to attach the blade to the handle. This method minimizes direct contact with the blade, thereby reducing the risk of cuts or injuries. Options such as holding the blade with fingers or pressing the handle onto the blade placed on a flat surface expose individuals to potential harm. Moreover, while asking someone else to attach the blade for you might seem safer for you, it doesn't necessarily ensure the process is safe overall. Employing a specialized tool designed for this purpose is the most secure approach, as these tools are specifically engineered to handle blades safely during attachment.