Select from options: Continue writing the next sentence.

How to become a train driver
Meet the general qualifications.
You must be at least 18 years of age. You must pass a background check and a drug screen.

Select from:
a). You must have a high school diploma or ged. You should also have a bachelor's degree..
b). You must be able to work alone for long periods of time, handle emergency situations and think for yourself. Attend formal training, which will consist of classroom study and hands-on experience..
c). You must not have had an accident on a train. You must have never been convicted of a felony..
d). You must have been in a rehabilitation facility or equivalent for a minimum of 120 hours. You must have completed no criminal offense within 120 days..
Answer:
b).