MADRID, Sept 14 (Reuters) - Spanish bank Sabadell is considering making a bid for an 18 billion euro ($20.4 billion) mortgage portfolio held by British nationalised banks Northern Rock and Bradford & Bingley, a source familiar with the process said on Monday.
Utilize the input text as a context reference, choose the right relationship between 'Sabadell' and 'euro' from the options.
Options: currency, industry, distribution format, chief executive officer