Answer: 3. A solemn discussion of events.
Step-by-step explanation: In the given speech we can see that it is being discussed the importance of the men that gave their live fighting for their nation, for liberty, equality and human rights. Solemn means something formal and dignified so just by reading the speech we can recognized that its purpose is to make a solemn discussion of events, to honor those men and to emphasize the importance of what they did.