The entry to record $$500$ received from a customer for services provided to that customer today would be:

$\backslash$table$[[$Account Titles,Debit,Credit$],[\backslash$table$[[$Cash$],[$Service Revenue$]],500,500]]$

$$

$\backslash$table$[[$Account Titles,Debit,Credit$],[$Service Revenue,$500,],[$Accounts Receivable,,$500]]$

C$.$

$\backslash$table$[[$Account Titles,Debit,Credit$],[\backslash$table$[[$Dividends$],[$Cash$]],500,]]$

D$.$

$\backslash$table$[[$Account Titles,Debit,Credit$],[$Cash$,500,],[$Accounts Receivable,,$500]]$