Answer:
Reduce
Explanation:
The answer is that Berryhill chose to reduce the risk of being crippled by computer virus. A risk refers to the potential of having a situation that can cause a negative effect or the loss of something important. In this case, Berryhill reduced the risk because the company was worried that a computer virus would affect the operation and they decided to minimize this danger by installing an anti-virus and building a firewall.
