After the accounts are adjusted and closed at the end of the fiscal year, Accounts Receivable has a balance of $$671,989$ and Allowance for Doubtful Accounts has a balance of $$20,653.$ What is the net realizable value of the accounts receivable?

a$.$ $$651,336$

b$.$ $$692,642$

c$.$ $$671,989$

d$.$ $$20,653$