A non denominational church is a place where its not any certain christian religion. not catholic just plain chrisitan teachings. it also means that there are people of all types of cultures. its a place where all races come together to learn about God or any religion they believe. it does support any religion.
I wonder whether there would be also other options, but one very important aspect is the smog: the city center is where many industry-relevant things meet: the factories are all around it, transport, cars... and since it is surrounded by bad air, the air takes longer to dissipate. This is especially visible if the city is in a valley, such as Mexico city foe example.
Answer:
Aryans from central Asia invaded South Asia and introduced the caste system as a means of controlling the local populations.
Explanation:
The answer is the first one, A