By the end of this court session, the jury all the witnesses and they the courtroom to decide on a verdict.

The correct answer is: B. have heard

The jury will have heard all the witnesses by the end of the court session. This is because the jury is responsible for listening to the testimony of all the witnesses and then deciding

on a verdict. The jury will not be able to decide on a verdict until they have heard all the evidence.

The other options are incorrect because they do not accurately reflect the timeline of events. Option A, “have been hearing,” is incorrect because the jury will not have been hearing the witnesses for

the entire court session. Option C, “are hearing,” is incorrect because the jury will not be hearing the witnesses at the time they are deciding on a verdict. Option D, “hear,” is incorrect because the jury will not be hearing the witnesses at the time they are deciding on a verdict. Option E, “will have heard,” is incorrect because the jury will have heard all the witnesses by the time they are deciding on a verdict.