firstname = INPUT ("What is your firstname?")lastname = INPUT ("What is your lastname?")PRINT ("Hello " + firstname + " " + lastname + "!") This code uses:IterationSelectionSequencing

Answer 1

The code you provided demonstrates the concept of sequencing.

Here’s a breakdown of the three programming constructs you mentioned:

1. Sequencing: This is the process of executing statements in a specific order. In your code:

   • The user is first asked to input their first name.
   • Then the user is asked to input their last name.
   • Finally, the program prints a greeting. This flow clearly demonstrates sequencing, as the operations are performed in a linear order.

2. Selection: This involves making decisions in code based on conditions, typically using constructs like if statements. Your code does not include any conditional statements, so it does not represent selection.

3. Iteration: This involves repeating a block of code multiple times (for example, using loops like for, while, etc.). Your code does not contain any loops, so it does not demonstrate iteration.

To summarize, your code uses sequencing but does not involve selection or iteration.