Accuracy. Incorrect. Accuracy is the principle that personal data shall be accurate and kept up to date.
Data minimization. Correct. Data minimization means that personal data shall be adequate, relevant and limited to what is necessary. (Literature: A, Chapter 2; GDPR Article 5(1)) Fairness and transparency. Incorrect. Fairness and transparency mean that personal data shall be processed lawfully, fairly and in a transparent manner in relation to the data subject.
Purpose limitation. Incorrect. Purpose limitation means that personal data shall be collected for specified, explicit and legitimate purposes and not further processed in a manner that is incompatible with those purposes; further processing for archiving purposes in the public interest, scientific or historical research purposes or statistical purposes shall, in accordance with GDPR Article 89(1), not be considered to be incompatible with the initial purposes.

The controller is responsible for performing the DPIA. However, after executing it, it is necessary to have the opinion of the DPO - in charge of Data Protection, so that it can give its opinion, favorable or not for the continuity of processing.
Article 35 of GDPR
2. The controller shall seek the advice of the data protection officer, where designated, when carrying out a data protection impact assessment.

Explanation/Reference: https://www.whitecase.com/publications/article/chapter-10-obligations-controllers-unlocking-eu- general-data-protection