Let's break this down step by step:
Initial Code:
tup = (1, ) + (1, )
(1, ) is a tuple with a single element, 1.
(1, ) + (1, ) concatenates two tuples, resulting in (1, 1).
So now:
tup = (1, 1)
tup = tup + tup
tup is (1, 1).
Concatenating tup + tup results in (1, 1, 1, 1).
So now:
tup = (1, 1, 1, 1)
print(len(tup))
len(tup) calculates the number of elements in the tuple, which is 4.
Final Output:
4
Explanation:
Tuple Creation and Concatenation:
python
tup = (1,) + (1,)
(1,) is a tuple with one element, 1.
The expression (1,) + (1,) concatenates these two tuples, resulting in a new tuple:
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tup = (1, 1)
Doubling the Tuple:
python
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tup = tup + tup
The tuple tup is concatenated with itself.
After the concatenation, tup becomes:
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tup = (1, 1) + (1, 1) = (1, 1, 1, 1)
Length Calculation:
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print(len(tup))
The len() function returns the number of elements in the tuple tup.
Since tup is now (1, 1, 1, 1), its length is 4.
Conclusion:
The correct answer is:
B. 4
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