Question

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Explanation:

Analyze the outer conditional structure

The program uses Conditional Statements to control which message is displayed. Let's look at the outer IF statement:

IF (number >= 10)
{
    IF (number == 20)
    {
        DISPLAY("MEDIUM")
    }
    ELSE
    {
        DISPLAY("HOT")
    }
}
ELSE
{
    DISPLAY("COLD")
}

If the condition number >= 10 is false, the program goes to the outer ELSE block and displays "COLD".

Determine the condition for "COLD"

To display "COLD", the outer condition number >= 10 must be false. This means:

$$ \text{number} < 10 $$

We need to find an input value from the choices that is strictly less than 10.

Evaluate the given options

Let's test the options using our Pseudocode Analysis skills:

• A: 5

Since \(5 < 10\), the outer condition number >= 10 is false. The program jumps to the outer ELSE block and executes DISPLAY("COLD"). This matches the target message.

• B: 10

Since \(10 \ge 10\), the outer condition is true. It enters the nested block. Since \(10
eq 20\), it goes to the inner ELSE and displays "HOT".

• C: 15

Since \(15 \ge 10\), it enters the nested block. Since \(15
eq 20\), it displays "HOT".

• D: 20

Since \(20 \ge 10\), it enters the nested block. Since \(20 == 20\), it displays "MEDIUM".

Therefore, the user must input 5 to display "COLD".

Answer:

• (A) 5 (Correct answer)
• (B) 10
• (C) 15
• (D) 20