Which of the following is the BEST tool for a technician to use to make sure the network wires are securely fastened in a wall jack?

A crimper is used to attach RJ-45 or RJ-11 modular plugs to the end of a cable, not to terminate wires into a wall jack's IDC contacts.

A small flat screwdriver cannot properly seat conductors into IDC slots and risks damaging the jack contacts.

Wire strippers remove the outer insulation from cables but do not terminate or secure conductors inside a wall jack.

A punch down tool has a blade that simultaneously seats the conductor into the insulation displacement contact (IDC) of a keystone jack or 110-block and trims the excess wire, creating a secure, low-resistance electrical connection. This is the industry-standard method for terminating structured cabling at wall jacks and patch panels. No other listed tool can properly seat and trim wire in an IDC connector.