When you create new VM instances in Google Cloud Platform using the $\text{'}$vm$1-$template', what is the primary purpose of initially creating the $\text{'}$vm$-$image' based on the vm$1\text{'}$s disk?

$1$ point

To update the operating system of the new VM instances.

To serve as a backup for the original vm$1$ instance.

To increase the storage capacity of the original vm$1$ instance.

To use as the boot disk for the new VM instances created from the $\text{'}$vm$1-$template'.