The So-Called "Moho" __________

The so-called "Moho" __________.

A) is an abbreviation for the famous "mole hole" bore hole which yielded the deepest crustal core sample ever collected
B) is the name given to the contact plane between the crust and mantle
C) is the name given to the sharp break in composition between oceanic and continental crust
D) refers to a research station on the coast of Yugoslavia where much of the early research on earthquakes was performed
E) is the name given to the boundary between the core and the mantle