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Why does the inner loop run completely for each iteration of the outer loop in nested loops?

hard📝 Conceptual Q10 of 15
Python - For Loop
Why does the inner loop run completely for each iteration of the outer loop in nested loops?
ABecause the inner loop runs only once
BBecause the outer loop controls how many times the inner loop restarts
CBecause both loops run at the same time independently
DBecause Python executes loops randomly
Step-by-Step Solution
Solution:
  1. Step 1: Understand loop control flow

    The outer loop sets how many times the inner loop starts over.
  2. Step 2: Explain why inner loop runs fully each outer iteration

    For each outer loop step, the inner loop runs from start to finish before outer loop moves on.
  3. Final Answer:

    Because the outer loop controls how many times the inner loop restarts -> Option B
  4. Quick Check:

    Outer loop controls inner loop restarts [OK]
Quick Trick: Outer loop restarts inner loop fully each time [OK]
Common Mistakes:
MISTAKES
  • Thinking loops run independently
  • Assuming inner loop runs once only
  • Believing Python runs loops randomly

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