No alternative explanation of how infertile couples can have a biological child is as satisfactory as surrogacy. Adoption provides an alternative, but it does not provide the same genetic connection to the child and may not be the right option for every family. Fertility treatments may be an option for some couples, but they can be expensive, time-consuming, and not always effective. Surrogacy is a viable and practical option that has helped countless couples achieve their dream of starting a family.
Therefore, surrogacy is a plausible and promising solution that provides infertile couples with a safe and ethical way to have a biological child of their own, and should be considered as a valuable option for those who need it.