Final answer:
The defender can only agree to concede guilt in a trial strategy if the defendant agrees to this approach, as the defendant retains autonomy over their defense strategy.
Step-by-step explanation:
When it comes to a defender agreeing to the trial strategy of conceding guilt, especially when facing the possibility of a death sentence, the correct answer is D. Only if the defendant agrees. The defense strategy, including whether to plead guilty or not, ultimately relies on the defendant's approval. The defendant has autonomy over their defense, which may involve decisions of whether to accept a plea bargain or pursue a trial, where the latter could potentially lead to a more severe sentence. The right to a fair trial, including the right to be represented by counsel and the right to make key decisions regarding one's defense, is underscored by various court rulings and constitutional protections. It should be noted that in some cases, such as overwhelming evidence of guilt, a defender may suggest conceding to lesser charges to avoid more severe penalties like the death sentence.