What three modifications, made independently, made to class greet, enable the code to compile and run?

Given: What three modifications, made independently, made to class greet, enable the code
to compile and run?

A.
import handy.dandy,KeyStroke; added after line 1

B.
import handy.dandy.*; added after line 1

C.
import handy.*; added before line 1

D.
line 6 replaced with handy.dandy.KeyStroke Stroke = new
handy.dandy.KeyStroke();

E.
line 6 replaced with handy.dandy.keystroke stroke = new KeyStroke ( );

F.
import handy.dandy.KeyStroke.typeException(); added before line 1

G.
line 6 replaced with handy.*.KeyStroke = new KeyStroke ( );