Explanation:

In the Administering Windows Server Hybrid Core Infrastructure materials for storage and file systems, BitLocker Drive Encryption is described as a volume-level encryption technology that operates below the file system. The guides explain that BitLocker can be applied to operating system volumes (which must be NTFS) and to fixed data volumes. For data volumes, BitLocker supports encryption regardless of whether the volume is formatted with NTFS or ReFS, because encryption occurs at the block level; only the boot/OS volume requirement mandates NTFS. Therefore, on Server1, BitLocker can be used on C (NTFS), D (NTFS), and E (ReFS).
For quotas, the same coursework clarifies two quota mechanisms: NTFS disk quotas and FSRM quotas. The built-in NTFS disk quota feature is tied to the NTFS file system and enforces per-user limits based on file ownership on NTFS volumes only. ReFS does not implement NTFS disk quotas. (FSRM quotas, while more flexible, are also documented as being supported for NTFS volumes, and the exam objective commonly tests recognition that "NTFS disk quotas apply only to NTFS volumes.") Consequently, disk quotas can be configured on C and D (both NTFS), but not on E (ReFS).
Thus, per the Windows Server administration guidance:
* BitLocker: C, D, and E
* Disk quotas: C and D only.