Answer:
d. credit to the investment account for $9,000
Step-by-step explanation:
Inequity method investor reports his proportionated share as an invesment in the balance sheet and any profit / loss will also be recorded in this account.
Zach company initialy recorded the share in Investment account and subsequest loss will also be adjusted in the this account with a credit entry because of debit nature of Investment account.
Loss Share = $20,000 x 45% = $9,000