A, which goods will be produced B, the quantity of goods produced C which companies will produce goods
Record of teachings, deeds and sayings, and silent permissions of the islamic prophet Muhammad.
The main reason would be the environment because of the fact their population is so big, they need enough room for everyone. There's also the connection with having available food source within the environment when the people plan to settle in. There's also the idea of desirable climate which helps them with food sources and allows them to flourish instead of dying off.
I think its c because its not pleasant to open a can of worms