Biology Forums - Study Force

What is wrong with the following program segment?
      Main
         Declare Apples As Integer
         Set Apples = 4
         Call Snack(Apples)
         Write “You have “ + Apples + “ apples”
         Write “and “ + Oranges + “ oranges”
        End Program
        Subprogram Snack(Fruit)
         Declare Oranges As Integer
         Set Oranges = Fruit + 2
        End Subprogram
a.   you cannot call a subprogram that has only one parameter
b.   you cannot declare variables within a subprogram
c.   you cannot access a variable that has been declared locally within a subprogram outside that subprogram
d.   nothing is wrong with the code segment

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