Considering the following statements: I. the average life span of the electronic component is 1554 hours. II. The accumulated frequency of the thir...

Considering the following statements: I. the average life span of the electronic component is 1554 hours. II. The accumulated frequency of the third class indicates that 15 components had a lifespan of less than 1500 hours. III. The accumulated relative frequency of the fourth class indicates that only 25% of the components have a lifespan equal to or greater than 1600 hours. Only what is stated in:

I. the average life span of the electronic component is 1554 hours.
II. The accumulated frequency of the third class indicates that 15 components had a lifespan of less than 1500 hours.
III. The accumulated relative frequency of the fourth class indicates that only 25% of the components have a lifespan equal to or greater than 1600 hours.
a) I and II are correct.
b) II and III are correct.
c) I and III are correct.
d) Only III is correct.
e) All statements are correct.