Which combination of South Dakota-specific facts about the motorcycle endorsement is correct?

1. 50-question test, 90% to pass, $100 fee, helmets required for all riders
2. 25-question test, 19 of 25 to pass (76%), $28 new applicant or $15 add-on fee, helmets required only under 18 (SDCL 32-20-4), eye protection required for all riders (SDCL 32-20-4.1)
3. Open-book exam, no fee, no helmet rule, lane splitting legal
4. 20-question test, 75% to pass, $45 fee, lane splitting legal in Sturgis