In C language. Please specify all .c program files.

5. Recall that a geometric sequence is a sequence of numbers where each term is the previous term multiplied by a constant r, and the first term in the sequence is a constant a: {a, ar, ar, ar, ...} Suppose a = 2, r = 3, then the geometric sequence is: {2, 6, 18, 54, 162, ...} Write a program that creates a child process and generates the first n terms of this sequence in the child process. The integers n, a, and r will be provided on the command line. For example, if the three integers 6, 2, 3 are passed as parameters on the command line, when you run your program as follows (assume your program executable is named geom): $ ./geom 6 2 3 Then the child process will output to screen: 2, 6, 18, 54, 162, 486 Do error checking to make sure that the three integers passed on the command line are all positive