Answer:
B. The individual trials and the averages should each have their own columns in the data table.
Step-by-step explanation:
It is important to show all data clearly when conducting an experiment. So it is essential to have separate columns for individual data and another column for the averages of different data in different individual trials. This allows readers to compare the data obtained in individual trials with the calculated averages. This also provides a lucid way to observe the deviations made, if any.