Please and must explain/show work, thank you!

d) Consider the code below. The upcase name0 function should convert the ith name to upper case by calling upcase by ref, which should in turn call upcase0. Complete the implementation of upcase_by.ref. You may not change any part of upcase.name. void upcase_by_ref char** n)l * Fill-in* void upcase_name(char* names[]l, int i)\ /* No not touch */ upcase_by_ref( &(names[il))