Final answer:
a. Ensuring data security
An information policy's main purpose is to ensure data security by establishing rules for managing corporate data. Ensuring the integrity and protection of data from unauthorized access is a crucial aspect of data management within organizations.
Step-by-step explanation:
The primary purpose of an information policy is to establish procedures and rules that ensure the management and use of corporate data is consistent, secure, and reliable. When creating databases, a key element is ensuring data security, as this helps protect the data from unauthorized access or breaches, which could lead to data corruption or loss. While streamlining access and improving both the aesthetics of the database and the efficiency of hardware are worthwhile goals, they are secondary to the principal objective of maintaining the integrity and confidentiality of data.