Article 83 (5) of the GDPR prescribes a fine of Euro 20,000,000 or in the case of an undertaking, 4% of annual global turnover for a controller that violates Articles 5,6.7, 9, 12 -22 (data subject rights) and 44 - 49. Therefore, a failure by a controller to provide the means for a data subject to rectify inaccuracies in personal data would amount to an infringement of data subject rights, which would attract a penalty of Euro 20,000,000 and NOT Euro 10,000,000.

The correct answer should be B