When using cat, what character entered as a command line argument takes input (reads from) Standard Input? - bine b. (15) Read the getopt(3) man page, read The Linux Programming Interface Appendix B, and answer the following questions, aray should be thought of as an array of char *, that is argv is an array of pointers to C Strings (recall a C String is a NULL terminated sequence of characters). Each element in argy corresponds to an entry on the command line; recall from LPI that argv[0] is the name of the program called from the command line. [107__70] Regarding getopt, what variables, and associated data type (C Declaration Syntax), are declared as a result of including the above library? Variable Name: Data Type (C Declaration Syntax): Data Type Variable Name: (C Declaration Syntax): Data Type Variable Name: (C Declaration Syntax): Data Type Variable Name: (C Declaration Syntax): [3/_/0] If you want the most control and information from the return value of getopt, what character should appear at the beginning of the optstring argument? [2/_/0] Name a library function that can be called from within a C program to ensure getopt, performs per the POSIX specification