Under Article 244 of Bahrain's Traffic Law Implementing Regulation, how long is a full motorcycle driving licence valid, and how does that differ from the learner licence?

1. The full licence lasts one probationary year and is then renewed for five years
2. The full licence is valid for five years from issue and may be renewed repeatedly for like periods, whereas the temporary learner licence is issued for one year
3. The full licence is valid for six months only
4. The full licence never expires once issued