You have the following le. index.py: from sys import argv\nprint(argv[1] + argv[2]) You run the le by executing the following command in the terminal. python index.py 42 3 What is the expected output?

Question

Options

• A45
• B4242
• C423
• D126

• A
  11% (3)
• B
  4% (1)
• C
  81% (22)
• D
  4% (1)

Explanation

sys.argv stores command-line arguments as strings, not numbers, so argv[1] + argv[2] performs string concatenation - joining "42" and "3" into "423", making C correct.

Why the distractors are wrong:

• A (45) assumes Python converts the arguments to integers automatically - it doesn't; sys.argv is always a list of strings.
• B (4242) would require repeating argv[1] twice (e.g., argv[1] * 2), not adding two separate arguments.
• D (126) would result from actual integer multiplication (42 * 3), which would also require explicit type conversion.

Memory tip: Think of argv as a list of text typed at the terminal - to do math, you must wrap values in int() or float() first (e.g., int(argv[1]) + int(argv[2]) gives 45). The + operator on strings always concatenates, never adds.

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