The parents of a 4-year-old with sickle cell anemia tell the nurse that they would like to have other children, but they’re concerned about passing sickle cell anemia on to them. Which health care team member would be the most appropriate person for the nurse to refer them to

A. Clergy.
B. Social worker.
C. Certified nurse midwife.
D. Genetic counselor.

在我国，违反宪法的事件时有发生，这些问题严重影响着社会主义法治的进程。我国的宪法委员会作为协助全国人大和人大常委会行使监督权的专门机关，是解决这些问题的专门机关。