Great britain is an example of a:
o
a. dictatorship
o
b. republic with unitary system
o
c. constitution monarchy with parliamentary system
d. oligarchy with federalist system

The answer is C

Explanation:

Although there is a monarch there is a set of rules they must follow.

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation:

whose power in the senate is equal to the power of the speaker of the house?