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.
<span> Muslims believe that God revealed holy books or scriptures to a number of God's messengers. These include the Quran (given to Muhammad), the Torah (given to Moses), the Gospel (given to Jesus), the Psalms (given to David), and the Scrolls (given to Abraham).</span>
Athens was a direct democracy which means that all eligible citizens voted directly on bills and legislation. Citizens had input in many of the decisions that were made. On the other hand, the US is a representative democracy. This means that voters elect politicians who cast votes on the issues at hand on their behalf.