An administrator wants to add a web server to an existing multi-tier application consisting of three virtual machines:

A web server

A database server

An application server

The

web server should be added to the application when the primary web server reaches:

70% vCPU utilization

55% active memory

Which option will achieve this result?

A. Create a virtual machine alarm with an action to run a script that starts a new instance

of the web server.

B. Create a host cpu and memory alarm with an action to run a script that starts a new instance of the web server.

C. Configure HA application monitoring for the web server and set it to trigger deployment of a new instance of the web se

rver.

D. Configure Fault Tolerance on the virtual machine and leave the secondary machine disabled until needed.