That good reputation

“If you display or show the BP or Shell logo in an exhibit you are helping to better their brand and give them social legitimacy,” says Chris Garrand, founder of Culture Unstained an organisation which supported the protestors.

Rather than good-natured philanthropy, Garrand believes that donations from fossil fuel companies are a way of reorienting their public image, a practice known as ‘artwashing’.

“These sponsorships are transactional and they are buying that good reputation,” says Garrand.
(Euronews.)

Is that a determiner or an adverb in that good reputation?