<span>The correct answer is that the conspirators exchange short bursts of one-syllable words, which shows their urgency and fear that the assassination might not succeed. They are obviously afraid, and not talking much, because they are unsure of whether they will make it and kill Caesar in the end. This way of speaking shows their anxiety before the murder has happened, which is why it is the correct answer. The other ones don't make much sense in this case.</span>
