Answer:
C. Club should decrease the balance in the investment account to the current value and recognize a loss on the income statement.
Explanation:
Club SHOULD account for the decline in value by decreasing the balance in the investment account because it is stated in IAS 28 that when the 'carrying amount' which is the book value of an investment in an another company's shares exceeds the amount at which that investment can be disposed which is its 'recoverable amount', an impairment loss is recognized. The loss should be posted directly to the investment account.
Hence the investment account will be credited and the corresponding debit will go to the income statement.