Which of the Following Statements About Asymmetric-Key Encryption Is Correct

Which of the following statements about asymmetric-key encryption is correct?

A) When using asymmetric-key encryption method,a total of two keys are necessary in electronic communication between two parties.
B) Employees in the same company share the same public key.
C) Most companies would like to manage the private keys for their employees.
D) Most companies would like to use a Certificate Authority to manage the public keys of their employees.
E) Two of the above are correct.