A Particle in a Finite Potential Well Has Energy E $\Psi$

Multiple Choice

A particle in a finite potential well has energy E, as shown below. The wave function in region I where x < 0 has the form $\Psi$ I =

A) Ae-Cx.
B) AeCx.
C) F sin kx.
D) G cos kx.
E) F sin kx + G cos kx.