A.it outputs 2

B.it outputs 1

C.the code is erroneous and it will not execute

D.it outputs 3

A.it depends on the Python version

B.yes, but it cannot differentiate its behavior between the regular launch and import

C.no. it is not possible; a module can be imported, not run

D.yes, and it can differentiate its behavior between the regular launch and import

A.s.writeline("Hello")

B.write(s, "Hello")

C.s.writeln("Hello")

D.s.write("Hello\n")