New technology can preserve culture by

limiting it.
recording and documenting it.
explaining and teaching it.
diluting it.

The correct option is "recording and documenting it."

Technology, as part of the human environment, is always linked to culture. This not only includes methods of survival and production, but also the creation of language, sounds, art, etc. Its nature is ambivalent, as it accelerates the transfer of information and knowledge, and creates new concerns and problems such as the threat of nuclear weapons, the erosion of the environment and the use of "clones." The mass media and the computer, unite the world through their networks, but eliminate what is specific and challenge the survival of the cultures that are the heart of all societies.