2024 SC DMV Practice Test 17 Based on 2024 SC Driver's Handbook 18. Which of the following driving skills is/are affected by the use of alcohol and/or drugs? A All the others. B coordination C alertness Next More 18/30 Progress 0 Errors Restart Next Next SC Permit Practice Test 17 Back to Test List SC Permit Practice Test 16 SC Permit Practice Test 18 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 18 SC Permit Practice Test 18 19 SC Permit Practice Test 19 20 SC Permit Practice Test 20 21 SC Permit Practice Test 21 22 SC Permit Practice Test 22 23 SC Permit Practice Test 23