Hancock Medical Supply Co$.,$ which had no beginning balance in its Accounts Receivable and Allowance for Doubtful Accounts, earned $$160,000$ of revenue on account during Year $1.$ During Year $1,$ Hancock collected $$128,000$ of cash from its receivables accounts. The company estimates that it will be unable to collect $1\%$ of revenue on account. The amount of net realizable value of receivables on the December $31,$ Year $1$ balance sheet would be:

A$.$ $$30,400.$

B$.$ $$30,720.$

C$.$ $$32,000.$

D$.$ $$30,000.$