Let ptr be a pointer variable. Which one is equivalent to the following expression? *ptr++ "ptr++) None of these "*ptr) ("ptr)++ Let some be an int variable that contains a positive integer. Which one creates a unique_ptr that owns an array of some integers? unique_ptrcint[]> WPtr uptr = new int[some); int ptr - new int[some); auto uptr=make_unique int [1>(some) None of these Let numbers be the identifier of a 1-dim array. Which expression represents the address of the first element of numbers? numbers numbers + 1 None of these numbers[0] numbers