**Core Concept**
Chorionic villous sampling (CVS) is a prenatal diagnostic procedure that involves removing a small sample of placental tissue for genetic testing. Before 10 weeks, the embryo's anatomy is still in a critical developmental stage, and disruptions to this process can have significant consequences.

**Why the Correct Answer is Right**
The correct answer relates to the risk of limb abnormalities associated with early CVS procedures. Between 5-10 weeks, the embryo's limb buds are particularly vulnerable to disruptions caused by the sampling procedure. This can lead to a higher incidence of limb abnormalities, including amniotic band syndrome and limb reduction defects. The underlying mechanism involves the mechanical disruption of the developing limb buds, which can interfere with normal growth and development.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not a well-documented consequence of early CVS procedures. While there are risks associated with CVS, limb abnormalities are not commonly cited as a concern.
* **Option B:** This option is incorrect because the primary concern with early CVS is not fetal death, but rather limb abnormalities and other developmental issues.
* **Option C:** This option is not a direct consequence of early CVS procedures. While there are risks associated with CVS, the primary concern is not chromosomal abnormalities in the fetus.

**Clinical Pearl / High-Yield Fact**
It is essential for obstetricians and genetic counselors to carefully weigh the risks and benefits of CVS procedures, particularly when performed before 10 weeks. The risk of limb abnormalities highlights the importance of careful timing and technique when performing CVS.

**Correct Answer: C.**