A C program contains the following statements *include int i, j, k; 4.55 Write an appropriate scanf function to enter numerical values for i, j and k, assuming (a) The values for i, j and k will be decimal integers. (b) The value for i will be a decimal integer, j an octal integer and k a hexadecimal integer (c) The values for i and j will be hexadecimal integers and k will be an octal integer