Using the same data,post hoc tests were run.Based on the output for these tests,what should the HR manager conclude? 
A) The scheme group was significantly different from the post-scheme and control groups,and the post-scheme group was significantly different from the control group.
B) The scheme group was significantly different from the control group but not the post-scheme group,and the post-scheme group was not significantly different from the control group.
C) The scheme group was significantly different from the control group but not the post-scheme group,and the post-scheme group was significantly different from the control group.
D) The post hoc tests are inconclusive.
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