Change the given below simple sentences into a "Compound sentence"
It rained for three days. The streets in my neighborhood flooded
1
It rained for three days as the streets in my neighborhood flooded.
2
It rained for three days so the streets in my neighborhood flooded.
3
The streets in my neighborhood flooded because it rained for three days.
4
The streets in my neighborhood flooded since it rained for three days.