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Why is it important to use the '&' operator with variables in scanf when reading multiple inputs in C?

hard📝 Conceptual Q10 of 15
C - Input and Output
Why is it important to use the '&' operator with variables in scanf when reading multiple inputs in C?
ABecause & converts variables to strings
BBecause scanf needs the memory address to store the input value
CBecause & is used to print variables
DBecause & initializes variables automatically
Step-by-Step Solution
Solution:

  1. Step 1: Understand how scanf works

    scanf stores input values at the memory address of variables.

  2. Step 2: Role of & operator

    & operator gives the address of the variable to scanf so it can store input correctly.

  3. Final Answer:

    Because scanf needs the memory address to store the input value -> Option B

  4. Quick Check:

    & gives variable address for input storage [OK]
Quick Trick: Use & to pass variable address to scanf [OK]
Common Mistakes:
  • Thinking & converts variables to strings
  • Confusing & with printing
  • Assuming & initializes variables

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