On January 1, 2021, Dreamworld Co. began construction of a new warehouse. The building was finished and ready for use on September 30, 2022. Expenditures on the project were as follows:

January 1, 2021	$340,000
September 1, 2021	$510,000
December 31, 2021	$510,000
March 31,2022	$510,000
September 30, 2022	$340,000

Dreamworld had $7,000,000 in 14% bonds outstanding through both years. The average accumulated expenditures for 2022 by the end of the construction period was:

a. $1,105,000

b. $1,771,400

c. $1,431,400

d $.2,210,000