A. Install one DHCP server in each branch office and in Sydney. On each server， create duplicate scopes that contain the necessary scope options. Configure the scopes to assign all of the available IP addresses to each office.
B. Install one DHCP server in each branch office and in Sydney. On each server， create duplicate scopes that contain the necessary scope options. Configure the scopes to assign half of the available IP addresses to each office.
C. Install two DHCP servers in each branch office and in Sydney. Authorize one server in each office. On each server， create duplicate scopes that contain the necessary scope options. Configure the scope to assign half of the available IP addresses to each office.
D. Install two DHCP servers in each branch office and in Sydney. Authorize both servers in each office. On each server， create duplicate scopes that contain the necessary scope options. Configure the scope to assign half of the available IP addresses to each office.