A variable name a value. 1, references a value and a pointer variable name references a) indirectly, directly b) directly, directly c) directly, indirectly d) indirectly, indirectly 2. The definition char string1[] "first"; = is equivalent to: a) char stringi ','', 'r', 's', 't',0' b) character string1 [ ] = { 'f', 'i', 'r', 's', 't', '\0' b) char string1 [ ] = { 'f', 'i', 'r', 's', 't' }; c) char stringi '','', 'r','s','t',o }; 3. Using the following function definition: AB(C the function name is represented by. a) A b) B c) C d) D