Use the chart titled "population growth in new york city, 1800-1890", to answer the following question. in which year did the population of new york city first pass one million? a. 1810 b. 1830 c. 1860 d. 1870

The chart would be included in the attachment.
I believe the answer is D. 1870

Take a look at the Brown graph. It surpass the bottom l 100 million mark that placed on the y axis.
On top of that, i checked the data at Government ceensus. The new york population in 1860 was still around 800,000 people.