If the lattice constant of this semiconductor is decreased, then which of the following is correct ?
.
A. All `E_(c),E_(g) & E_(v)` decrease
B. All `E_(c),E_(g) & E_(v)` increase
C. `E_(c)` and `E_(v)` increase, but `E_(g)` decrease
D. `E_(c)` and `E_(v)` decrease but `E_(g)` increase
