Why do we use the functions?a.To decrease the readability of codeb.Increases the size of the code, identical set of statements are substituted by function calls.c.Debugging of the code would be simpler if you use functions, as errors are uncomplicated to be traced.d.To reduce

We use functions in programming for several reasons:

a. Increase the readability of code: Functions help to break our program into smaller and modular chunks. As our program grows larger and larger, functions make it more organized and manageable. It avoids repetition and makes the code reusable.

b. Decrease the size of the code: Instead of writing the same code again and again, we can simply create a function and call it whenever needed. This significantly reduces the size of the code and unnecessary repetition.

c. Simplify debugging: If a particular block of code is causing an error, it's easier to identify and correct the error if that code is part of a function. This makes the debugging process faster and more efficient.

d. Code reusability: Once a function is defined, it can be used over and over again in the same program or in other programs. This promotes code reusability and saves a lot of time and effort.