Concept:The word that best completes the sentence is one that means formally ending a meeting to be continued later.
Explanation:A meeting has an agenda with items to be discussed.
When all planned items have been covered, the meeting is brought to a formal close.
If it will resume later or on another day, we say the meeting has been adjourned.
Among the options, "adjourned" is the only term that specifically refers to ending a session while intending to continue it later.
"Dismissed" means sent away, "postponed" means delayed to a later time, and "dissolved" means ended permanently.
Answer:C. adjourned