Network please INeed answer after 15min answer and explain

Q3] (12 Marks): It is required to design an Ethernet LAN network to operate with 128 Mbps that has the same frame format used in standard Ethernet, answer the following items: Minimum frame time in microseconds 4 points 51.2 25.6 Maximum length (in meter) of the network is about, 4 points 400 100 5120 550 If frame data size change is available as design factor, what is the new frame size (in bit) that makes 128 Mbps network has the same MaxLength with 100 Mbps Fast Ethernet? 256 128 512 O 656