Answer:
Hello there the Correct answer is C.
Hope it helps!
Recycling, waste disposal, public health, and water and air pollution control.
It could potentially be a monarchy, where there is a constitutional/just-for-show king or queen.
The main reason why cities are an essential part of civilization is because cities allow for the diversification of labor, which lets people specialize in certain trades. This is crucial for expansion.
The last Tsar was Nicholas II.