The meeting was called to ruminate on recent events in the subcontinent.

Answer: Option A

Ponder : think about (something) carefully, especially before making a decision or reaching a conclusion.
Examine : inspect (someone or something) thoroughly in order to determine their nature or condition.
Argue : give reasons or cite evidence in support of an idea, action, or theory, typically with the aim of persuading others to share one's view.
Discuss : talk about (something) with a person or people.
Ruminate : think deeply about something.

Synonym of Ruminate is Ponder