Sentence Correction (SC) | Re: Researchers of the Antikythera mechanism claim the retrieval of this a

Researchers of the Antikythera mechanism claimthat the retrieval of this ancient Greek analog computer dating to circa 205-100 B.C.E.suggest their development of complex gear systems, the demonstration of meticulous workmanship, and achievement of remarkably exact and accurate calculations happened several centuries, almost a millennium, before a European device of similar complexity appeared.

A. suggest their development of complex gear systems, the demonstration of
B. suggest that the