Of the four options, only baths belong to a water system of an estate, so the correct answer is C.
Aviary is a birdcage, colonnades are supporting columns and wrestling grounds are areas used for wrestling.
Answer: The stong nationalism of the Serbians.
Explanation: The Serbians were against plans of Austria-Hungary to colonize their land.
Answer:
because hawaii technically isnt attatched to the main land