Answer:
b, $6,000
Explanation:
Acme Enterprises owe $3,000 at the start of the year
Acme sells half the merchandise for $5,000 then pays $1,000 from the $3,000 initially owed.
this means that after paying $1,000 from the previous $3,000 debt, Acme enterprises now have a debt of $3,000 - $1,000 = $2,000
After paying the $1,000, Acme enterprises bought another merchandise of $4,000.
Having in mind the existing $2,000 debt from the first purchase, Acme Enterprises now has an account payable balance of $2,000 + $4,000 = $6,000.
Cheers.