You want to categorize a number into 'small', 'medium', or 'large' using a case/when statement. Which code correctly implements this?

hard📝 Application Q8 of 15

Ruby - Control Flow

You want to categorize a number into 'small', 'medium', or 'large' using a case/when statement. Which code correctly implements this?

Acase num when 0,10 'small' when 11,100 'medium' else 'large' end

Bcase num when 0..10 then 'small' when 11..100 then 'medium' when 101.. then 'large' end

Ccase num when 0..10 'small' when 11..100 'medium' when 101..1000 'large' end

Dcase num when 0..10 'small' when 11..100 'medium' else 'large' end

Step-by-Step Solution

Solution:

Step 1: Check coverage of all number ranges
case num when 0..10 'small' when 11..100 'medium' else 'large' end covers 0..10 as small, 11..100 as medium, and else as large (all others).
Step 2: Verify syntax and completeness
case num when 0..10 'small' when 11..100 'medium' else 'large' end uses valid syntax and covers all cases with else.
Final Answer:
case num when 0..10 'small' when 11..100 'medium' else 'large' end -> Option D
Quick Check:
Use else for catch-all in case/when [OK]

Quick Trick: Use else for all other cases in case/when [OK]

Common Mistakes:

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