When parameters are passed between the calling code and the called function, formal and actual parameters are matched by: a.

their relative positions in the parameter and argument lists.

Explanation:

In Computer programming, a variable can be defined as a placeholder or container for holding a piece of information that can be modified or edited.

Basically, variable stores information which is passed from the location of the method call directly to the method that is called by the program.

For example, they can serve as a model for a function; when used as an input, such as for passing a value to a function and when used as an output, such as for retrieving a value from the same function. Therefore, when you create variables in a function, you can can set the values for their parameters.

A parameter can be defined as a value that must be passed into a function, subroutine or procedure when it is called.

Generally, when parameters are passed between a calling code and the called function, formal and actual parameters are usually matched by their relative positions in the parameter and argument lists.

A formal parameter is simply an identifier declared in a method so as to represent the value that is being passed by a caller into the method.

An actual parameter refers to the actual value that is being passed by a caller into the method i.e the variables or values that are passed while a function is being called.

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