A PC that is communicating with a web server has a TCP window size of $6,000$ bytes when sending data and a packet size of $1,500$ bytes. Which byte of information will the web server acknowledge after it has received four packets of data from the PC$?$

radio$\_$button$\_$unchecked

$1501$

radio$\_$button$\_$unchecked

$3001$

radio$\_$button$\_$unchecked

$1500$

radio$\_$button$\_$unchecked

$6001$