After setting up a Virtual Private Cloud (VPC) network, a more e

After setting up a Virtual Private Cloud (VPC) network, a more experienced cloud engineer suggests that to achieve low network latency and high network throughput you should look into setting up a placement group. You know nothing about this, but begin to do some research about it and are especially curious about its limitations. Which of the below statements is wrong in describing the limitations of a placement group

A.ALTHOUGH LAUNCHING MULTIPLE INSTANCE TYPES INTO A PLACEMENT GROUP IS POSSIBLE, THIS REDUCES THE LIKELIHOOD THAT THE REQUIRED CAPACITY WILL BE AVAILABLE FOR YOUR LAUNCH TO SUCCEED.

B.A PLACEMENT GROUP CAN SPAN MULTIPLE AVAILABILITY ZONES.

C.YOU CAN'T MOVE AN EXISTING INSTANCE INTO A PLACEMENT GROUP.

D.A PLACEMENT GROUP CAN SPAN PEERED VPCS

正确答案是B