What was one major strategy for training Code Talkers in the memorable aspects of their language?

The correct answer highlights a significant strategy in training Code Talkers: developing mnemonic devices associated with military jargon to aid rapid recall. This approach was crucial because it helped the Code Talkers quickly remember and accurately use critical military terms and phrases in their native language under the stress of combat situations. By creating associations between these terms and memorable devices, the trainees could improve their recall speed and reduce the likelihood of confusion during operations when every second counted.

This method mitigated the natural challenges posed by language barriers and facilitated a more effective communication strategy during military engagements. Ensuring that these trained individuals could quickly convey vital information without hesitation was essential for success in operations that relied on swift and secure communication.