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Jorgen Rasmussen3,367 Points
The question Select any valid tuples: seems to have no correct answers. None end with a comma
None of the answers seem correct as we were told in the instructions that a tuple must have a comma after every object including the last one, correct?
The only time that the last object in a tuple is required to be followed by a comma is when the tuple contains only one object, so the comma shows that it is a tuple not just a single object contained in a variable. For example: if you wanted the variable "var" to contain the integer 1 you could write
#Not a tuple var = 1
But if you wanted var to contain a tuple with only one value, you would write
var = 1, #or if you wanted to use parentheses var = (1,)
But when you have multiple items in a tuple, you do not need to have a comma after the last one as the interpreter is able to determine it is a tuple by the syntax of the previous objects in the tuple.