Correct Answer: B
Explanation:
It makes sense that the firemen would take action to put out the fire, so the blank word has to relate to the process of putting out a fire. The correct answer is “douse,” which means to drench with water. To further help you, "exacerbate" and "intensify" are synonyms and both mean to make worse or more intense; "embolden" means to make confident; "solidify" means to make solid or to harden.