1. Add refinements to the program outline that follows and write the final C program./** C...

1. Add refinements to the program outline that follows and write the final C program.

/** Compute the sum and average of two numbers.*/#include  /* printf, scanf definitions */intmain(void){double one, two, /* input - numbers to process */sum, /* output - sum of one and two */average; /* output - average of one and two *//* Get two numbers. *//* Compute sum of numbers. *//* Compute average of numbers. *//* Display sum and average. */return (0);}