Well if you regularly workout a lot from day to day, you are probably fit for your age, depending on what type of lifestyle you live. Some of the following could be, increased muscle capacity, healthier lungs, increased stamina, things in that area.
It will be Josh who gets his target THR. His range is within 135 bpm—175 bpm while the actual heart rate was 165 bpm, deducting it with 20 bpm results to 145 bpm - falling to the 135 bpm—175 bpm THR range. Although doing the same method as Josh's results to 165 bpm for Dominique, it doesn't fall to his 150 bpm—183 bpm THR range.
I think it would be E because it is unsafe to have your contact information public