What percentage of the Massachusetts driver education curriculum should be devoted to classroom instruction versus behind-the-wheel instruction?

1. 100% classroom, 0% behind-the-wheel
2. 30 hours classroom, 12 hours behind-the-wheel, and 6 hours observation
3. 10 hours classroom, 40 hours behind-the-wheel — Massachusetts driver ed requires 30 classroom, 12 BTW, and 6 observation hours.
4. Equal hours of each