What is Mare Imbrium commonly known as?

Mare Imbrium is commonly referred to as the Imbrium Basin. This name is derived from its geological classification and features, as it is one of the largest and most prominent mare (meaning "sea" in Latin) on the Moon's surface. It was formed by a large impact event that created a vast, flat plain covered by basaltic lava after the impact filled the basin.

The use of the term "Mare" traditionally refers to the darker regions of the lunar surface that were mistaken for seas by early astronomers. The Imbrium Basin is significant not only for its size but also for its geological history, showcasing features that provide insights into the Moon's formation and the dynamics of lunar volcanism.

The other choices refer to different features or translations associated with other lunar maria or regions, but Mare Imbrium specifically stands out as the Imbrium Basin due to its distinct impact origin and geological characteristics.