so there is slim chance that your girl might be a band 1 girl. it is worthwhile to take a bit more risk.
part b
first choice - a second best band 1 school with the maximum number of places offered.
second choice - the best band 2 school, either own net or other nets.
your first choice should choose band 1 school related to your government primary school as those places are reserved for government feeder primary schools in your school net.