Respuesta :
Answer:
C) Parlamentary system
Explanation:
Because those countries share the principles of the Parlamentary system: 1. Parliament elects the head of the goverment, 2. the legislative power is divided in two chambers, 3. Parliament doesn't share with another state body the direction of the public affairs(The government) and 4.the head of state has a symbolic function, because he doesn't has political power, for example, currently Isabel II is the head of state of United Kingdom and Australia at the same time, but those countries have a different head of the goverment.