Final answer:
The correct answer for moving to the next cell in a row or column during data entry is to press Tab and Enter, respectively. Practicing and mastering the numeric keypad can enhance efficiency.
Step-by-step explanation:
The most efficient way to perform data entry is to keep your hands on the keyboard and press Tab to move to the next cell in the row or press Enter to move to the next cell in the column. The correct answer to this question is D. Tab; Enter.
If you are having difficulty with the data entry process and these methods are not working for you, an important tip is to not give up and keep practicing. Try rearranging the order in which you type in the keys as this might help you to become more proficient. Mastering your calculator or the numeric keypad can lead to even greater efficiency in data entry.