Party identification in Texas is weak

A(n) _____ is a list of people selected from a poll's universe by chance.

Fill in the blank(s) with the appropriate word(s).

What is a disadvantage of a unitary system?

a. Separating grants of power to national and local units, allowing each unit to act within its own sphere b. Allowing local authorities to rule as they see fit within their own territories c. Centralizing power and allowing for organized rule and lines of authority d. Placing limits on what local authorities can do within their areas