D. The enemy is crafty, unscrupulous, experienced in deception.
This is the best choice. By calling the enemy crafty, unscrupulous, experienced in deception, Stalin is feeding the hatred the people have for the enemy. He is detailing the traits that are not desired and makes the people feel as though they are justified in their efforts to defeat the enemy. These details are also insulting to the enemy and could also be used to incite the enemy.
Heavenly, delectable, tasty. Connotation is like how strong the meaning of the word is and I'm pretty sure heavenly would go before delectable.
In my dictionary (my brain), reckless means causing trouble nonstop. But you should look it up for a more accurate answer.
Hope I helped!
