The Following Is a Program Segment and the Definition of a Function

Short Answer

The following is a program segment and the definition of a function named sub.
$$\begin{array} { l r } .\\.\\\mathrm { X } = 3 ; & \text { def } s u b ( Y ) : \\\operatorname { sub } ( \mathrm { X } ) & \mathrm { Y } = 5 ; \\\text { print } ( \mathrm { X } ) ; &\\.\\.\end{array}$$
A. What value will be printed by the program segment if parameters are passed by value?
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B. What value will be printed by the program segment if parameters are passed by reference?
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