Assume a file has following permissions - TW Which of the following command will give only write permission to Owner, only execute permission to the group and only read permission to others. tion a. chmod u=w.g=x0= O b. chmod 215 F O c. chmod u+w, g+x, o+r F O d. chmod u=w.g=x0+r F Give the complete command to uninstall a software package say P from your Linux system