19. During February 2014, its rst month of operations, the owner of Alona Enterprises invested cash of $75,000. Alona had cash revenues of $12,000 and paid expenses of $21,000. Assuming no other transactions impacted the cash account, what is the balance in Cash at February 28? a. $9,000 credit b. $66,000 debit 0. $87,000 debit d. $54,000 credit