Answer :
The adjective in the sentence is "sticky."
Explanation:
1. Adjectives are words that describe or modify nouns or pronouns.
2. In the sentence "The dogs followed, tails wagging furiously, licking up the trail of stick," the word "sticky" describes the trail that the dogs are licking up.
3. Adjectives like "sticky" provide more information about the noun "trail" by describing its characteristic.
Therefore, in the given sentence, "sticky" is the adjective.