What will be the output of the following code snippet? d = {} d[1] = 1 d['1'] = 2 d[1] += 1 sum = 0 for k in d: sum += d[k] print(sum)

The correct answer is C. 4. See the full explanation below for the reasoning.

Question

What will be the output of the following code snippet?
d = {}
d[1] = 1
d['1'] = 2
d[1] += 1
sum = 0
for k in d:
sum += d[k]
print(sum)

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