**Core Concept**
The question tests the understanding of **hepatitis** transmission routes, specifically focusing on the **feco-oral route**. This route is characteristic of certain hepatitis viruses that are primarily spread through contaminated food, water, or poor hygiene.

**Why the Correct Answer is Right**
Hepatitis A and E are known to spread through the **feco-oral route**. Among these, **Hepatitis A** is a common cause of infectious hepatitis and is transmitted by the ingestion of food or water contaminated with the feces of an infected person. The **hepatitis A virus (HAV)** replicates in the liver, is excreted in bile, and shed in the stool.

**Why Each Wrong Option is Incorrect**
**Option B:** Hepatitis B is primarily spread through **blood and bodily fluids**, not the feco-oral route.
**Option C:** Hepatitis C also spreads through **blood and bodily fluids**.
**Option D:** Hepatitis D (delta agent) requires co-infection with Hepatitis B to replicate and is spread through **blood and bodily fluids**.

**Clinical Pearl / High-Yield Fact**
It's crucial to remember that **Hepatitis A** can be prevented by good hygiene, proper sanitation, and vaccination.

**Correct Answer: A. Hepatitis A**