Managers Are Considering Holding Informational Workshops to Help Decrease Anxiety $P$

Managers are considering holding informational workshops to help decrease anxiety levels among employees. They randomly select 20 employees to participate in a pilot workshop. These employees were given a questionnaire to measure anxiety levels before and after participating in the workshop. A test was performed to determine if the workshop was successful in decreasing anxiety levels. The test results yielded a $P$ -value of $0.008$ . The correct conclusion at $\alpha = .05$ is

A) to accept the null hypothesis.
B) to reject the null hypothesis.
C) to conclude that participating in the workshop decreases employee anxiety about ERP.
D) both $\mathrm { A }$ and $\mathrm { C }$ .
E) both $B$ and C.