Final answer:
The optional attendee for the Utilization and Training Workshop (U&TW) is the Air Education and Training Command (AETC)/Training Pipeline Manager (TPM).
Step-by-step explanation:
The optional attendee for the Utilization and Training Workshop (U&TW) is the Air Education and Training Command (AETC)/Training Pipeline Manager (TPM). The other options, such as AETC Career Development Course (CD)C writer, Air Force Career Field Manager (AFCFM), and MAJCOM Functional Manager, are not mentioned as optional attendees for the workshop.