Which situations are prohibited by California's drug-impairment rule even when the ordinary adult alcohol number is not reached? Select all that apply.
Driving while impaired by a drug✓Respuesta correcta
Driving unimpaired after taking a nonimpairing medicine
Driving under the combined influence of alcohol and a drug✓Respuesta correcta
Driving unimpaired with an ordinary adult alcohol reading below 0.08 percent
Explicación
Driving while under the influence of a drug is unlawful independently of the ordinary adult alcohol number, and combined drug-and-alcohol influence is also prohibited. A prescription or a lower alcohol reading does not turn drug-impaired driving into lawful driving.