An officer states that the average fine levied by the safety office against companies is at most $200. A company owner suspects it is higher. She samples 10 companies and finds that the average is $210. The standard deviation of the sample is 16. Test the claim that the average is higher than $200. At= 0.05, which of the following is true?

a.The critical value is 1.761.

b.The critical value is 1.812.

c.Reject the null hypothesis.

d.There is not enough evidence to support the claim.