Can you help me solve this?

for a test hypothesis, u<= 13.0 at the 4% significance level, what can be said about the probability of committing the type one error ( be brie, but precise)

Answers:

a. exactly .096%

b. at most 0.04%

c. at least 0.04%

d. exactly 0.04%

e. at most 0.05%