Which best explains how fiber-optic technology has improved communication?

It has eliminated the need to send audio data through telephones.

It has allowed for faster transmission of Internet signals.

It has increased the speed at which light travels through space.

It has reduced society's reliance on devices such as computers and cell phones.

In fiber-optic technology, optic fibers are being utilized in the transmission of light in between fiber ends. This improves communication for the reason that it can transmit signals in longer distances and higher bandwidths. In this case, the answer that supports this is the third option: the speed is increased as light travels through space.