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Which of the following correctly uses a while loop to traverse a string?

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Single Answer MCQ

Q-00067878

while index < len(str1): print(str1[index]); index += 1

for index in range(len(str1)): print(str1[index])

while str1[index]: print(str1[index])

if index < len(str1): print(str1[index])

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