Consider the following declarations.   int    sum1, sum2; float  number; double total;           Initially the values of the variables are as follows: sum1   = 10          number = 2.5f sum2   = 20          total  = 10.25d   consider only the effect of each statement on the initial values specified above. By state which is invalid and not valid? a) number = sum1; ............ b) sum2 = (int) total;         ............ c) number = sum1 / sum2; ............ d) sum1 = number * 4;          ............ e) total = number;              ............ f) number = sum2 % 2; ............ g) sum1 = (int) (sum2 / 3.0f); ............ h) number = (float) sum1 + 2.0; ............

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A: The answer for the given question is as follows.

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Types of Function

A function is a process or task that does some operation in the program. Some programming languages may contain built-in functions for certain commonly used tasks. Most programming languages also support user-defined functions, which means a user can write their own function to perform some operation. There are some libraries or header files that contain built-in functions for performing certain tasks.