Question

the tragedy of hamlet, prince of denmark
act i, scene 1.
francisco stands guard in front of the castle in elsinore, denmark. another guard, bernardo, enters to take over the watch.
elsinore. a platform before the castle.
francisco at his post. enter to him bernardo.
bernardo: whos there?
francisco: nay, answer me; stand, and unfold yourself.
bernardo: long live the king! (5)
francisco: bernardo?
bernardo: he.
francisco: you come most carefully upon your hour.
bernardo: tis now struck twelve; get thee to bed, francisco.
francisco: for this relief much thanks; tis bitter cold, (10)
and i am sick at heart.
bernardo: have you had quiet guard?
francisco: not a mouse stirring
bernardo: well, good-night.
if you do meet horatio and marcellus, (15)
did forfeit with his life all those his lands
which he stood seizd of, to the conqueror;
what is the main purpose of horatio’s speech?
to help the audience better understand horatio’s character
to explain to the audience how the former king died and became a ghost
to describe to the audience the location of the castle and kingdom
to inform the audience of the events leading up to this point

Explanation:

Horatio's speech (the text snippet "Did forfeit with his life...conqueror") provides background context about the former king's fate, which helps the audience understand the events that led to the current situation in the play, rather than focusing on character development, location description, or just the king's death - ghost transformation.

Answer:

to inform the audience of the events leading up to this point