What is the purpose of an else-if (elif) clause in conditional statements?

• A. To execute code regardless of conditions
• B. To test additional conditions when the previous if condition is false
• C. To create a loop
• D. To define a function

Answer: (B)

An else-if clause lets you test another condition only if the previous condition was false. It lets a program handle several mutually exclusive cases in a clean, linear way: try the first condition, if it isn’t true then check the next one, and so on, with a final else catching anything that doesn’t match any of the earlier conditions. For example, if a temperature is above 30 you might say it's hot, else if it's above 20 you say warm, else you say cool. This shows why the else-if is used: it adds more conditions to check in a chain without duplicating code or writing nested blocks, and only one branch runs.

The other options don’t fit because they describe what happens in different programming constructs: executing code regardless of conditions would be unconditional execution, a loop repeats code, and a function defines reusable behavior.