Og into Ocelot Use sample program from called getopt. c . Make a copy of getopt. c and call it gactivity. c (from samples to activities directory) Create a Makefile to compile the activity program. Modify gactivity. c for the following usage: Usage: gactivity [-b] -c cname -d data value1 value2 [value ...] Where the -b option is optional The -c option is required and needs an argument to go with it. The -d option is required and needs an argument to go with it. At least two value are included but there may be more than two. The program should print out all the flags and values at the end so it should be modified throughout to match the new usage. Program should print error if invalid options are used or missing options or parameters. Upload the Zip file with both the sources and makefile