What is the output of the following?
x = ['ab', 'cd']
for i in x:
x.append(i.upper())
print(x)
a) [‘AB’, ‘CD’].
b) [‘ab’, ‘cd’, ‘AB’, ‘CD’].
c) [‘ab’, ‘cd’].
d) none of the mentioned
x = ['ab', 'cd']
for i in x:
x.append(i.upper())
print(x)
a) [‘AB’, ‘CD’].
b) [‘ab’, ‘cd’, ‘AB’, ‘CD’].
c) [‘ab’, ‘cd’].
d) none of the mentioned