Kate likes to solve sudoku puzzles in her leisure time using a sudoku game app on her phone. Yesterday, she solved a 'hard' level sudoku in 744 seconds and an 'expert' level sudoku in 1200 seconds. User data from the app shows that the average time it takes to solve the 'hard' level sudoku is 730 seconds with standard deviation 89 seconds and the average time it takes to solve the 'expert' level sudoku is 1023 seconds with standard deviation 162 seconds. 1. What is the Z-score for the time Kate took to solve the 'hard' level sudoku? 2. What is the Z-score for the time Kate took to solve the 'expert' level sudoku? 3. Using the Z-scores, in which level did Kate perform better? A. The 'expert' level B. She performed the same on both levels C. The 'hard' level