Question: Consider the following segment of code. Stack s = new Stack(); s.push(P); s.pop(); s.push(Q); s.push(R); s.push(s.peek()); System.out.println(s.toString()); When the code gets executed, the output is:

Consider the following segment of code.

Stack s = new Stack(); s.push("P"); s.pop(); s.push("Q"); s.push("R"); s.push(s.peek()); System.out.println(s.toString());

When the code gets executed, the output is:

Select one:

a. [P, Q, R]

b. [R, R, Q]

c. [Q, R, R]

d. [Q, R]

e. [P, R, R]

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