**Core Concept**
Listeriosis is a bacterial infection caused by **Listeria monocytogenes**, which can pose significant risks during pregnancy, particularly in the first trimester. The infection can lead to severe complications, including miscarriage, stillbirth, and preterm labor. **Listeria monocytogenes** is a gram-positive bacterium that can be transmitted to the fetus through the placenta.

**Why the Correct Answer is Right**
Since the correct answer is not provided, let's discuss the general approach to Listeriosis in pregnancy. The infection can be asymptomatic or present with flu-like symptoms, such as fever, headache, and muscle aches. In pregnant women, **Listeria monocytogenes** can invade the placenta, leading to fetal infection and potentially life-threatening complications.

**Why Each Wrong Option is Incorrect**
**Option A:** Without the specific option text, we cannot determine why it is incorrect.
**Option B:** Similarly, without the text, we cannot assess its accuracy.
**Option C:** This option's correctness cannot be evaluated without the provided text.
**Option D:** The same applies to this option, as the text is missing.

**Clinical Pearl / High-Yield Fact**
It's essential to note that pregnant women are approximately 10 times more likely to get **Listeriosis** than the general population. This increased susceptibility is due to the altered immune response during pregnancy.

**Correct Answer:**