C.) It is both arguable and defensible. :)
The factors that made it difficult for Eastern Europe to improve its water quality were outdated sewer systems, raw water quality, worn-out water utilities and unskilled employees. So we can say that four options given in the question fits the bill perfectly. These basic infrastructural reasons were responsible for being a hurdle towards improving the water quality. <span />
Answer:
A traditional economy is a system that relies on customs, history, and time-honored beliefs.
Explanation:
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