Assuming that the code below has been executed successfully, which of the following expressions evaluate to True? (Select two answers)

Which of the following lambda function definitions are correct? (Select two answers)
You are going to read just one character from a stream called s. Which statement would you use?
You need data which can act as a simple telephone directory. You can obtain it with the following clauses (choose two relevant variants; assume that no other items have been created before)
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