**Core Concept**
Intrauterine fetal demise (IUFD) at 36 weeks poses a risk of infection and sepsis for the mother. The primary goal of treatment is to prevent maternal complications while also managing the deceased fetus.

**Why the Correct Answer is Right**
The correct approach involves the delivery of the fetus, which can be achieved through a vaginal delivery or a cesarean section. This step is crucial to prevent the spread of infection and sepsis in the mother. The decision between vaginal and cesarean delivery depends on the individual case, considering factors such as fetal weight, cervical dilation, and the presence of any complications.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as it does not address the primary goal of preventing maternal complications. Expectant management may be considered in cases of late-term IUFD, but this is not the preferred approach in this scenario.

**Option B:** This option is incorrect as it does not mention the delivery of the fetus, which is essential to prevent infection and sepsis.

**Option C:** This option is incorrect as it does not specify the need for delivery, which is the primary step in managing IUFD.

**Clinical Pearl / High-Yield Fact**
It is essential to note that the delivery of the fetus should be performed as soon as possible to prevent maternal complications, and the decision between vaginal and cesarean delivery should be made on a case-by-case basis.

**Correct Answer:** D. Delivery of the fetus (either vaginal or cesarean section)