A Lawyer Collected $710 of Legal Fees in Advance $\quad$ $\quad$

A lawyer collected $710 of legal fees in advance. He erroneously debited Cash for $170 and credited Accounts Receivable for $170. The correcting entry is a. Cash $\quad$$\quad$ 170
$\quad$ Accounts Receivable $\quad$$\quad$ 540
$\quad$$\quad$ Unearned Service Revenue. $\quad$$\quad$ 710
b. Cash $\quad$$\quad$ 710
$\quad$ Service Revenue $\quad$$\quad$ 710
c. Cash $\quad$$\quad$ 540
$\quad$ Accounts Receivable $\quad$$\quad$ 170
$\quad$$\quad$ Unearned Service Revenue. $\quad$$\quad$ 710
d. Cash $\quad$$\quad$ 540
$\quad$ Accounts Receivable $\quad$$\quad$ 540