What is a consideration when choosing between vSphere Encryption and vSAN Encryption?

A. vSphere Encryption applies to the entire vSAN datastore
vSAN Encryption is on a per VM basis.
B. vSphere Encryption does not support deduplication and compression
vSAN Encryption allows deduplication and compression
C. vSphere Encryption addresses fears of media theft
vSAN Encryption addresses fears of a rogue admin

D. vSphere Encryption is for data-at-rest
vSAN Encryption is for data-in-flight

Reference: https://www.dellemc.com/content/dam/uwaem/production-design-assets/pl-pl/events/forum/2017/presentations/modern_infrastructure_CS3.pdf