Please help me with both questions. Answer each in C PROGRAM. Please provide the coding. Will give good rate if really help. Thank you

2 points Write the function selectionSort that accepts a string and an integer size indicating the length of the string as function arguments, and arranges the string elements in decreasing order. * Your answer 2 points Write a complete C program to test the selection Sort function. The program must prompt the user to enter a string and sort the string using selection sort. The program also must show the partial sorted string in each step