Please show work, no excel spreadsheets. Thank you

Question 6 (1 point) Tesla paid $96,000, in cash, for a piece of equipment 3 years ago. At the beginning of last year, the company spent $12,000 to update the equipment with the latest technology. The company no longer uses this equipment in its current operations and has received an offer of $21,000 from a firm that would like to purchase it. Tesla is debating whether to sell the equipment or to expand its operations so that the equipment can be used. When evaluating the expansion option, what value, if any, should the firm assign to this equipment as an initial cost of the project? $12,000 $0 $96,000 $129,000 $21,000