Use the following information to answer the five questions that follow. Below is a portion of the amortization schedule relating to a 3-year note receivable from the Zeroz Company. The document was signed by a client of the company on January 1, 2018. The document pays interest annually on December 31. The expiration date is December 31 , 2020. According to the amortization table presented above, what is the principal of the note receivable? Select one: a. cannot be determined b. $19,626 c. $20,000 d. $20,374