Which of These Statements Is False

Which of these statements is false?

A) The lone pair on nitrogen provides a fourth group to complete a tetrahedral arrangement.
B) Amines that possess a stereogenic nitrogen atom interconvert through the inversion process.
C) For simple amines, the barrier to inversion is very low.
D) At the transition state for amine inversion, the amine is planar.
E) If amine inversion is fast, enantiomeric amines can be separated from each other.