2. If two arrays have the same size, we can "add" them as we do with vectors. For example: x2 Sum 3.7 2.1 1.0 0.0 2.7 1.7 3.2 2.0 3.0 3.8 5.4 5.3 3.0 3.0 Write a program, addarrays.c, which reads two arrays x1 and x2 from the file addarraysin.txt, and writes their sum to the file addarraysout.txt In more detail, the main carries out the following steps opens the two files addarraysin.txt and addarraysout.txt . reads the pairs of values from the file addarraysin.txt into the two arrays x1 and x2 calls the function add which adds the two arrays and stores the result into the array sum writes the size of sum followed by the values of sum to the file addarraysout.txt