A. Option C

B. Option A

C. Option D

D. Option B

A. public abstract int computeDiscount();

B. public static void insertToy() {/* code goes here */}

C. public int calculatePrice() {return price;}

D. public abstract Toy getToy() {return new Toy();}

E. public void printToy();

A. 2 4

B. Compilation fails

C. 0 2 4 6

D. 0 2 4

A. B
A

B. A ClassCastExceptionis thrown only at line n2.

C. C
C

D. A ClassCastExceptionis thrown only at line n1.

E. C

A. Compilation fails.

B. Hi removed

C. The program compiles, but it prints nothing.

D. An UnsupportedOperationException is thrown at runtime.