## Question 1
What is the correct output of **Min Number()** after four **Pop()** calls are made to the following stack?

stack = [3, 6, 2, 9, 0, 2, 5, -4, 12, -9, 6]

The top element of this stack is 6.
### Options

1. -4
Incorrect

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2. 0
Correct
**Pop()** removes 6, -9, 12, and -4 from the given stack. From the remaining stack, that is, [3, 6, 2, 9, 0, 2, 5], the minimum number is 0. Therefore, **Min Number()** returns 0.
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3. -9
Incorrect

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4. 3
Incorrect

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## Question 2
What is the correct output of **Min Number()** after five **Pop()** calls are made to the following stack?

stack = [14, -32, 2, 9, 66, 71, -11, 44, 22, 50, 35, -21, 1]

The top element of this stack is 1.
### Options

1. 1
Incorrect

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2. -11
Incorrect

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3. -32
Correct
**Pop()** removes 1, -21, 35, 50, and 22 from the given stack. From the remaining stack, that is, [14, -32, 2, 9, 66, 71, -11, 44], the minimum number is -32. Therefore, **Min Number()** returns -32.
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4. 14
Incorrect

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## Question 3
What is the correct output of **Min Number()** after two **Pop()** calls are made to the following stack?

stack = [9, -3, 2, -8, 5, 7, -4, 6, -2, 3, 8]

The top element of this stack is 8.
### Options

1. -8
Correct
**Pop()** removes 8 and 3 from the given stack. From the remaining stack, that is, [9, -3, 2, -8, 5, 7, -4, 6, -2], the minimum number is -8. Therefore, **Min Number()** returns -8.
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2. -2
Incorrect

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3. -4
Incorrect

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4. 9
Incorrect

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