Which of the following is required of a minor who applies for a driver's license?

a. The applicant must be at least 16 yrs of age
b. The applicant must have completed and passed a driver's training course
c. The applicant must have the application signed by his or her parent or guardian
d. If the applicant has no parent or guardian, the application must be signed by an employer or the county judge
e. All of the above