The Security Team Has Investigated the Theft/loss of Several Unencrypted

The security team has investigated the theft/loss of several unencrypted laptop computers containing sensitive corporate information. To prevent the loss of any additional corporate data it is unilaterally decided by the CISO that all existing and future laptop computers will be encrypted. Soon, the help desk is flooded with complaints about the slow performance of the laptops and users are upset. What did the CISO do wrong?

A) Failed to identify all stakeholders and their needs
B) Deployed the encryption solution in an inadequate manner
C) Used 1024 bit encryption when 256 bit would have sufficed
D) Used hardware encryption instead of software encryption