Marigold Corp. is constructing a building. Construction began in 2020 and the building was completed 12/31/20. Marigold made payments to the construction company of $3072000 on 7/1, $6372000 on 9/1, and $5880000 on 12/31. Weighted-average accumulated expenditures were

$3129000.

$15324000.

$3660000.

$9444000.