According to Article 14 of the GDPR, how long does a controller have to provide a data subject with necessary privacy information, if that subject’s personal data has been obtained from other sources?

According to Article 14 of the GDPR, how long does a controller have to provide a data subject with necessary privacy information, if that subject’s personal data has been obtained from other sources?
A . As soon as possible after obtaining the personal data.
B . As soon as possible after the first communication with the data subject.
C . Within a reasonable period after obtaining the personal data, but no later than one month.
D . Within a reasonable period after obtaining the personal data, but no later than eight weeks.

Answer: C

Explanation:

Reference: https://dataprivacymanager.net/gdpr-exemptions-from-the-obligation-to-provide-information-to-the-individual-data-subject/