Paulo Tells You That He Just Completed an Experiment in His

Paulo tells you that he just completed an experiment in his botany class,and the results he obtained were statistically significant.What does this mean

A)  His results were likely to be caused by a single strong variable. 
B)  His results were unlikely to be a consequence of chance variations in his sample. 
C)  His results are important and will likely have an impact in the field of botany. 
D)  His results will be of interest to people, even if they are not botanists.