A Cloud Administrator attempts to enforce a compliance policy that requires 100% network encryption for Tier-1 virtual machines.
The administrator opens the SPBM configuration wizard to apply a Data-in-Transit (DiT) rule specifically to the Tier-1 VM tag.
```
[Storage Policy Rule View]
Policy: Tier-1-Encrypted-Net
Available Rules:
- Failures To Tolerate
- Stripe Width
- IOPS Limit
- Data-at-Rest Encryption
- Data-in-Transit Encryption: [ MISSING ]
```
Why is the "Data-in-Transit Encryption" option absent from the VCF Storage Policy Based Management (SPBM) VM-level definition list?