Cameron is collecting data to determine the time of completion for each stage of germination in seeds. He is using bean seeds fo
r his investigation and recording his results. He repeats his data collection many times to obtain reliable results. Which aspect of his experimental process is most important for obtaining reliable results? A.Collecting enough varieties of onion types
B.Talking to other scientists during the experiment
C. Taking observations at precise intervals
D. Using a variety of microscopes for exact measurements