2024 SC DMV Practice Test 21 Based on 2024 SC Driver's Handbook 12. Which of the following driving skills is/are affected by the use of alcohol and/or drugs? A All the others. B alertness C coordination Next More 12/30 Progress 0 Errors Restart Next Next SC Permit Practice Test 21 Back to Test List SC Permit Practice Test 20 SC Permit Practice Test 22 Challenge Library 12 More SC DMV Practice Tests 1 SC Permit Practice Test 1 2 SC Permit Practice Test 2 3 SC Permit Practice Test 3 4 SC Permit Practice Test 4 5 SC Permit Practice Test 5 6 SC Permit Practice Test 6 7 SC Permit Practice Test 7 8 SC Permit Practice Test 8 22 SC Permit Practice Test 22 23 SC Permit Practice Test 23