Final answer:
The correct answer is option c) 15. 15 students were called back for a second audition out of 40 students who auditioned.
Step-by-step explanation:
The correct answer is option c) 15 students were called back for a second audition.
Out of the 40 students who auditioned, 15 were selected for a second audition. This means that approximately 37.5% of the students who auditioned were called back.
To find the answer, divide the number of students called back (15) by the total number of students who auditioned (40), then multiply by 100 to find the percentage:
15 / 40 * 100 = 37.5%
Therefore, the correct answer is option c) 15 students were called back for a second audition.