What does it refer to, in the following paragraph?
After O. Henry's marriage to Athol Estes in 1887, he began to write funny pieces for newspapers. He became so interested in writing that he bought a paper and made it a humorous weekly called The Rolling Stone. He wrote most of the pieces for it and even illustrated the articles himself. When the paper did not make enough money, he took a job writing for The Houston Daily Post as a reported and journalist.
Between these words, which is the correct reference of it?
- The Rolling Stone
I know the answer is not 3 or 4, but I am not sure whether it is 1 or 2.