The two documents portray the same episode that is the destruction of the ship maine in Havana Harbor. However, while document A exposes assumptions about the nature of the attack, based on beliefs and opinions, document B exposes this event based on facts and defining the situation as it actually happened.
In the case of journalistic articles about real events, it is important to broadcast events based on facts, as assumptions may differ from reality. For this reason, document B has stronger evidence.
