· is ruled by a head of government and a head of state
· often has a bicameral legislative branch
· united kingdom, canada, and australia are examples
these items are describing what type of government system?
a) confederation
b) oligarchy
eliminate
c) parliamentary
d) presidential

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.

answer; ///i believe the correct answer is (b) the writing of the ancients who lived in india after the indus valley inhabitants died out;