B . microscope
this is the answer .
Sodium. 11
Carbon. 12
Hydrogen 1
Oxygen 2
Fluuorine. 14
Boron. 5
Lithium. 6
Helium 3
Phosphorus 15
Sulfur 6
Oxygen: 16.00 g/mol
Hydrogen: 1.01 g/mol
The mass would be 17.01 g/mol
The crust
1. divergent (moves away from each other)
2. convergent (moves towards each other)
3. transform (slides past each other)