An Infrastructure Manager imports a configuration from the vSAN Sizer tool to deploy a new 4-node vSAN cluster in SDDC Manager. The Sizer projected that the cluster would have 40 TB of usable capacity after FTT=1 (RAID-1) mirroring.
However, immediately after SDDC Manager provisions the cluster, the capacity view shows significantly less available space for actual virtual machines than projected.
```
[SDDC Manager - vSAN Capacity View (Post-Deployment)]
Total Raw Capacity: 80.0 TB
Total Usable (RAID-1): 40.0 TB
Operations Reserve (Slack): 4.0 TB
Host Rebuild Reserve: 10.0 TB
Free Space for VMs: 26.0 TB
```
Which TWO factors explain the discrepancy between the "Sizer Projected Usable Space" and the actual
"Free Space for VMs" available post-deployment? (Choose 2.)