Emma arrived at the bus station at 7:15 a.m., expecting to catch the 7:30 a.m. bus to visit her grandmother. However, the station was crowded, and she had to wait in line to buy a ticket. By the time she reached the counter, the 7:30 a.m. bus had already departed. Emma bought a ticket for the next bus, scheduled for 8:00 a.m., and used the waiting time to buy a coffee and read a book.
Based on the information from the text and using inference and prediction, analyze the following statements.

I.If Emma had arrived at the station earlier, she probably would have managed to catch the 7:30 a.m. bus.
II.The long line at the ticket counter was the main reason Emma missed the 7:30 a.m. bus.
III.Emma used the waiting time to study for an exam, which was not planned.

The correct statements are: