For households in the area served by Ausgrid - the inner city, eastern and the northern suburbs, extending to Newcastle - the difference between the highest and lowest offers is $400, with the difference between the highest and lowest a more modest $285 in western and southern Sydney and also Wollongong, which is the area served by Endeavour Energy.
Utilize the input text as a context reference, choose the right relationship between 'Ausgrid' and 'Sydney' from the options.
Options: headquarters location, currency, distribution format, director/manager