The answer is A but idk how to get there.

Argo purchased 10 acres of prime commercial-zoned land in 2015 for $1,500,000. During 2016, Argo Company sold the land to a builder for $4,000,000. The builder gave Argo a $2,000,000 down payment and will pay the remaining balance of $2,000,000 to Argo in 2021. Using the installment method, how much profit will Argo report for 2021? $1,250,00 $1,750,000$1.8m $0