A candidate completed KPP Gabungan, obtained a B2 motorcycle licence, and later wants to add DA. What does JPJ's FAQ say about the KPP Gabungan certificate for adding the class?

1. There is no validity limit for the KPP Gabungan certificate in that add-class situation, but the class must be added in LDL with the required fee
2. The certificate expires after seven days
3. The candidate must always repeat KPP01 theory from the beginning
4. The certificate is valid only for heavy vehicles