Why Do Certificate Authority (CA)play an Important Role in a Company's

Multiple Choice

Why do Certificate Authority (CA) play an important role in a company's information security management?

A) Using a CA is required by SOX in managing information security.
B) A CA is responsible to generate session keys for encryption purposes.
C) Most companies use CA to manage their employees' public keys.
D) CA creates and maintains both the public and private keys for a company's employees.