In the structure of diborane,
A. all hydrogen lie in one plane and boron atoms lie in a plane perpendicular to this plane
B. 2 boron atoms and 4 terminal hydrogen atoms lie in the perpendicular plane
C. 4 bridging hydrogen atoms and boron atoms lie in one plane and two terminal hydrogen atoms lie in a plane perpendicular to this plane
D. all the atoms are in the same plane.
