Final answer:
The correct statement is that many late model vehicles do have shoulder belts for all occupants, which aligns with modern safety standards (Tech A is correct). However, seat belt airbags do not deploy from lap belts but from shoulder belts; thus, Tech B's statement is incorrect.
Step-by-step explanation:
The claim made by Tech A is that many late model vehicles have shoulder belts for all occupants, which is correct as most modern vehicles are equipped with three-point seat belts that provide a shoulder strap for all seating positions. This is in line with safety regulations that aim to enhance passenger protection. Therefore, Tech A is correct.
Regarding Tech B's assertion that seat belt airbags deploy from the lap belts, this is not accurate. Seat belt airbags are a supplemental safety feature found in some vehicles, but they deploy from the shoulder belt and not from the lap belt. Their design is aimed to spread out the forces experienced by a passenger during a crash, thus reducing potential injury. Consequently, Tech B is incorrect.
Thus, when evaluating the statements provided, Option 1: Tech A is correct, is the accurate choice, as it correctly identifies that many late model vehicles have shoulder belts for all occupants and refutes the incorrect assertion concerning seat belt airbags deployment from the lap belts.