12. (a) Apple Computer estimates that there are 1621 Apple 2 Computers currently in use. Apple has 20,000 memory "chips" which are useful only in Apple 2. The chip has a retail price of $10 each, a manufactured cost of $2 each, but may be scraped for $.50 each. Apple would like to write down the cost of 15,000 chips. May it do so? (b) Suppose there was no market for the chips, but A could "sell" the chips to a company who purchased the chips with a right to "put" the chips back to Apple