I believe the correct answer is a duel between Laertes and Hamlet.
Laertes had many reasons to want to kill Hamlet, the most important of which are the facts that Hamlet killed Polonius, Laertes' father, and indirectly led to Ophelia, Laertes' sister, committing suicide. So the excerpt above talks about their future duel in which Hamlet says he would kill Laertes in only three hits.
Tybalt, a Capulet, says this to Benvolio, a Montague, in act 1, scene 1 of Romeo and Juliet. The insult begins a brawl between the two families.
An implied argument is an argument which leaves us to draw the supposedly obvious conclusion for ourselves. Where an assumption on which the argument depends is not stated it is not readily available for scrutiny and therefore the fact that it is questionable or false can easily escape our attention. Similarly where a conclusion remains unstated the questionable connection between it and the reasons given for it remains out of view and may thus escape our critical appraisal. The problem with implied arguments therefore is that they involve a sort of mental sleight of hand that can fool us.
The best answer to go with would be answer one