Which of the following connections provide data with the MOST secure protection from interception?

Wired connections, such as Ethernet, physically transmit data through cables, making them inherently more secure against casual interception than wireless methods because an attacker needs direct physical access to the cable.

WiFi connections transmit data wirelessly through radio waves, making them susceptible to interception by anyone within range using appropriate equipment, even with encryption.

IR (Infrared) connections transmit data wirelessly using infrared light, which is highly directional but still vulnerable to line-of-sight interception if an attacker places a receiver in the path.

Cellular connections transmit data wirelessly over mobile networks, which can be intercepted, although modern cellular networks employ strong encryption.