Final answer:
Both student groups from West Philadelphia High School and Whittier Regional Vocational Technical High School are supported by their teachers but do not work completely independently without guidance. The incorrect statement is that they work independently without any guidance from teachers.
Step-by-step explanation:
The automotive academy student team at West Philadelphia High School in "The Fast and the Fuel Efficient" and the four classmates from Whittier Regional Vocational Technical High School in "Teens Open Doors" differ in their approach to guidance from teachers. While both groups are learning valuable skills that will help them get and retain good jobs, and have supportive teachers guiding them, the difference lies in the way they interact with their teachers. The statement that is NOT true for both groups is D) They work independently without any guidance from teachers, implying that at least one group does indeed receive teacher guidance in their projects.