What is the default storage limit for File storage in a Salesforce org?

Correct answer: Varies by edition

Option A is correct because Salesforce file storage allocations depend on the edition of the org; for example, Essentials includes 1 GB, Professional includes 10 GB, and Enterprise and above include 10 GB plus additional per-user allocations, so there is no single universal default. Option B is wrong because 5 GB is not a standard Salesforce file storage allocation for any common edition. Option C is wrong because while 1 GB applies to some editions, it is not universally the default across all editions. Option D is wrong because 20 GB is not a standard baseline file storage figure for Salesforce editions.