Answer:
Authoritarian rule can be or cannot be legitimate because existence of pure legitimacy is not possible
Step-by-step explanation:
The legitimacy represents outspoken public loyalty and conformist mentality of a individual /group/organization which shapes the repressive administrative machinery to be of a high developed nature. This is not possible in authoritarian regimes which leverage to facilitate certain sects of the society like elite group.
However, in current time pure legitimacy is also not possible hence the concept of authoritative legitimacy is arising.