James, Inc. incurred the following infrequent losses during 2020:

A $280,000 write-down of equipment leased to others.

A $160,000 adjustment of accruals on long-term contracts.

A $240,000 write-off of obsolete inventory.

In its 2020 income statement, what amount should James report as total unusual losses?

a. $680,000.

b. $520,000.

c. $440,000.

d. $400,000.

Please show your work