Sutherland Company purchased machinery for $1,120,000 on January 1, 2014. Straight-line depreciation has been recorded based on a $70,000 salvage value and a 5-year useful life. The machinery was sold on May 1, 2018 at a gain of $21,000. How much cash did Sutherland receive from the sale of the machinery?
a. $161,000.
b. $189,000.
c. $231,000.
d. $301,000.