What is the relationship between 'MBIA' and 'Finance' in the context of the input sentence.
Options: business division, manufacturer, location of formation, industry

PREPA said on Wednesday it agreed to an extension of the forbearance agreements through Sept. 18, 2015 with all creditors except National Public Finance Guarantee Corporation, a unit of MBIA Assured Guaranty was also party to the forbearance deal.
industry