Can the holder of a category B licence ride a motorcycle within national territory?

A)No, I cannot ride any type of motorcycle.
B)Yes, of any type.
C)Yes, a motorcycle that can be ridden with an A1 licence, provided the licence has been held for more than 3 years.Correct
Persons who hold a category B licence, with more than three years' seniority, may ride within national territory the motorcycles whose riding is authorised by the category A1 licence.