Answer with explanationAnswer: Option D
Prepared: make (something) ready for use or consideration.
Settled: resolve or reach an agreement about.
Started: begin or be reckoned from a particular point in time or space, come into being.
Established: having existed or done something for a long time and therefore recognized and generally accepted.
Installed: place or fix (equipment or machinery) in position ready for use.
Synonym of Installed is Established.
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