Liam and Melinda have completed one trial testing the freezing point of several solutions, but they cannot agree on what to do next in their experiment.
What should be the next step in their investigation?

A. repetition, completing more trials for each solution
B. analysis, determining whether their data are precise and accurate
C. further investigation, testing new solutions and comparing them to their original data
D. replication, asking about their classmates’ findings to compare data