Which of the following cable types can be used to decrease susceptibility to electronic eavesdropping?

Fiber optic cables transmit data using light pulses through glass or plastic, which makes them immune to electromagnetic interference and prevents electronic eavesdropping because they do not emit detectable electromagnetic signals.

Fast Ethernet refers to a networking standard, not a specific cable type, but if implying copper cables, they are susceptible to electronic eavesdropping.

Coaxial cables transmit electrical signals and can radiate electromagnetic energy, making them susceptible to passive electronic eavesdropping.

Thicknet is a type of coaxial cable that transmits electrical signals, making it vulnerable to electronic eavesdropping through signal radiation.