You have an Azure subscription that contains a virtual machine named VM1. VM1 hosts a line-of-business application that is available 24 hours a day. VM1 has one network interface and one managed disk. VM1 uses the D4s v3 size.
You plan to make the following changes to VM1:
Change the size to D8s v3.
Add a 500-GB managed disk.
Add the Puppet Agent extension.
Attach an additional network interface.
Which change will cause downtime for VM1?
A. Add a 500-GB managed disk.
B. Attach an additional network interface.
C. Add the Puppet Agent extension.
D. Change the size to D8s v3.
