Hackleman Company is constructing a building. Construction began in 2018 and the building was completed 12/31/18 Hackleman made payments to the construction company of $1,500,000 on 5/1, $3,600,000 on 8/31, and $4,800,000 on 12/1. The weighted-average accumulated expenditures were: Select one: O a $9,900,000 O b. $5,100,000 Oc. $3,300,000 O d. $2,600,000 O e $2,200,000