How does 'careless or inconsiderate driving' differ from 'dangerous or reckless driving' under the Traffic Act?

1. Careless driving falls below the standard of a reasonable, competent driver, while dangerous driving involves a more serious departure from that standard that creates an obvious danger
2. There is no legal difference; they are simply two names for the same offence
3. Careless driving only applies to learner drivers, dangerous driving only to fully licensed drivers
4. Dangerous driving is a civil matter, while careless driving is always a criminal matter