Assuming that plumbs is the underlined word, ignores would be the antonym
The journalist spent a year researching the foreign government's sanctions. Finally, it was time to synthesize all of the relevant information thathe had learned.
relevant means "connected to" or "related to"
keen means "sharp" or "being eager or enthusiastic"
strategic means "related to a bigger goal" (as in "his every action was strategic")
irate means "feeling annoyed" or "angry"
Answer:
I can't answer this because I don't know what those chapters are/which book, but I'd recommend skimming through it or looking up "(Book Title) Themes" and going off of that.
Explanation: