In the context of the input sentence, determine the relationship between 'Ryerson University' and 'Toronto'.
Options: location of formation, creator, headquarters location, original broadcaster

Chris MacDonald, a business ethics expert at Ryerson University in Toronto who oversaw a case study about Google’s operations in China while at Duke University, says Chinese regulators will see Play as less threatening than Search and Gmail, reducing the frequency of government-led probes.
headquarters location