种子中新植物体的幼体是______．其中______发育成茎和叶；发育成根的是______；为种子萌发提供营养的是______或______．

A client is being admitted to the labor unit. Because she’s well advanced in labor, the nurse must prioritize the admission questions. Which information is most important to obtain when birth is imminent（）

A. Duration of previous labor.

B. Frequency of contractions.

C. Presence of bloody show.

D. Expected due date.