What is the advantage of running IOS-XE individual consolidated packages versus subpackages?

Answer is C:

Running the Cisco ASR 1000 Series Routers: A Summary

The advantages of running your router using individual subpackages include:

Optimizes router memory usage — When the router is booting using the individual and optional subpackage method, software image content from the Router Processor (RP) is copied into memory on an as-needed basis only, which conserves memory for other router processes. The router boots fastest and allows for the highest peak traffic load when booted using the individual subpackage boot approach.

The advantages of running your router using a consolidated package include:

Simplified installation — Only one software file needs to be managed instead of several separate images.

Storage — A consolidated package, unlike individual subpackages, can be used to run the router while being stored in bootflash:, on a USB Flash disk, or on a network server.

http://www.cisco.com/c/en/us/td/docs/routers/asr1000/configuration/guide/chassis/asrswcfg/Package_Management.html