 In some contexts where the BIP operates there appears to be a determinate number of options, and perhaps even only a pair of options. This seems to be the case in custody disputes and medical decision-making. In this context the better option is the best. By contrast in the area of general policy affecting children there seem to be very many different possibilities. Yet even with custody and medical decisions we can expand the range of possible options. Thus what might be best for the child is not that she is cared for by either of the parents claiming custody, but that she is adopted by someone else entirely. Again, what might be best for the child is not that she receive the medical treatment on offer rather than not do so, though it may well be better that she does. What is best is that she is treated by the most skilled medical personnel within the finest medical facility, with no expense spared, and so on.