The correct answer is D. Secrecy.
Accounting conventions are the generally accepted accounting principles (GAAP) that companies follow when preparing their financial statements. They are designed to ensure that financial statements are accurate, complete, and consistent.
Consistency is the requirement that companies use the same accounting methods from period to period. This makes it easier to compare financial statements from different periods.
Full disclosure is the requirement that companies provide all relevant information in their financial statements. This allows users of financial statements to make informed decisions.
Materiality is the concept that only information that is significant to the financial statements needs to be disclosed. This means that companies do not need to disclose every detail about their operations.
Secrecy is not an accounting convention. It is the opposite of full disclosure. Secrecy would allow companies to hide information from users of financial statements, which would make it difficult for them to make informed decisions.