De Beers Consolidated Mines Ltd. was named after what?

The correct answer is that De Beers Consolidated Mines Ltd. was named after the owners of a farm. This farm, located near the town of Kimberley in South Africa, belonged to two brothers, Johannes and Daniel De Beer, in the 19th century. The discovery of diamonds in this area led to the establishment of the diamond mining industry in South Africa and the eventual creation of the De Beers company, which played a significant role in the global diamond market.

The other choices relate to the broader context of the diamond industry or notable figures, but they do not accurately reflect the origin of the company’s name. The connection to the farm owners is foundational to the company's history, making it a crucial point in understanding the beginnings of one of the most prominent players in the diamond sector.