What Kind of Geologic Studies Were the Primary Focus of the Glomar

Multiple Choice

What kind of geologic studies were the primary focus of the Glomar Challenger and JOIDES Resolution's international investigations?

A) conducting swath multi-beam bathymentry and other underway geophysical surveys to map the ocean basins
B) drilling the seafloor sediments and underlying ocean crust to determine the history and development of different oceanic regions
C) satellite mapping of the sea surface and spectroscopic analysis of surface currents for global current circulation and geochemistry
D) resource mapping on the continental shelves of Canada and other contributing member nations