Let s be a reference to an empty stack. What is the output of the following code segment? (Assume all variables have been appropriately declared.) L. s.push(2"k); while (s.isEmpty0) item s.topO: s.popO; System.out.print(item + ""); a. 12345 b. 54321 c. 2468 10 d. 108 642 What errors, if any, occur in the following code a non-empty stack of integers? J. segment, where s is a reference to while (!s.isEmpty0) item -s.topO; System.out.print(item+"); a. No error occur b. The while loop never terminates There is a syntax error in the loop's condition There is a return-type mismatch in the call to "top C. d