Q: In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
[header] How to have a water birth [title] Know why some women choose water births. [step] During a water birth, a baby is delivered in a birthing pool filled with lukewarm water. Deciding on a birth plan is a highly personal choice. <sep> (A) You may choose between a traditional pool birth or a baby waterfall birth. This is yet another personal choice that you can make. (B) There are a variety of reasons women choose water births over conventional methods. Know the rationale behind water births before deciding to undergo the procedure yourself. (C) Many experts rely on water births to understand the risks and effects of getting pregnant. [substeps] How often your infant is born is increasingly important to consider. (D) The baby's parents are experts in providing care, and it is a personal choice for you to ensure the child gets a healthy birth. [substeps] Even before birth, your mother might see her baby on a walk.
A:
B