IP地址为129.5.3.4，子网掩码为255.255.255.0的主机所在的网络，最多可以划分为P个子网，每个子网可以连接的最多主机为Q台，P和Q分别为（）

A．His family is well known in this country.
B．The public were not allowed to hear trial.
C．Physics include mechanics, heat, light, etc.
D．Poultry is expensive at this time of year.