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11 followers study24x7 25 Feb 2020 11:38 AM study24x7 study24x7

Which of the following is an invalid variable?

A

my_string_1

B

foo

C

1st_string

D

_

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11 followers study24x7 24 Feb 2020 12:29 PM study24x7 study24x7

What will be the output of the following Python code?

What will be the output of the following Python code?
A

[None, None] 

B

[‘ab’, ‘cd’] 

C

["AB", "CD"] 

D

none of the mentioned

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