use c programming and please solve with easy explanation

Implement a function that will merge the contents of two sorted (in ascending order) arrays of double typed variables, which are passed to the function as parameters. You will store the result in an array output parameter, again in sorted ascending order. The input arrays can be of different sizes; and you may assume that the arrays do not contain two copies of the same value. Also, you may assume that the merged array is large enough to hold all the data. Note that you don't have to prompt the user to enter initial values for the arrays since you are implementing a standalone function. Hint: Apart from the three array parameters, you will need the sizes of the arrays to be passed as parameters to the function. Example: First arrave