The "up" and "down" arrows in electron orbital notation, such as are shown here, depict:
A. protons and neutrons in orbitals
B. electrons with opposite spins
C. electrons and protons attracting each other
D. oppositely charged electrons
![The up and down arrows in electron orbital notation such as are shown here depict A protons and neutrons in orbitals B electrons with opposite spins C electron class=](https://us-static.z-dn.net/files/d12/1491606bec4f62ea881177df11a0d581.jpg)