**Core Concept**
Amoebiasis is an intestinal infection caused by the **protozoan parasite** *Entamoeba histolytica*, which can spread through contaminated food, water, or hands. The primary mode of transmission is the **fecal-oral route**.

**Why the Correct Answer is Right**
Since the correct answer is not provided, let's analyze the common modes of transmission for amoebiasis: contaminated food or water, and direct fecal-oral contact, often through poor hygiene.

**Why Each Wrong Option is Incorrect**
**Option A:** Could be incorrect if it suggests a vector-borne transmission, which is not typical for amoebiasis.
**Option B:** Might be incorrect if it implies direct person-to-person contact without the fecal-oral route.
**Option C:** Could be a plausible incorrect option if it suggests an airborne transmission route, which is not characteristic of amoebiasis.

**Why Each Wrong Option is Incorrect (Continued)**
**Option D:** Without knowing the specific option, if it involves a common mode of amoebiasis transmission like contaminated food or water, it would be an incorrect choice as the question asks for the exception.

**Clinical Pearl / High-Yield Fact**
A key point to remember is that *Entamoeba histolytica* can form **cysts**, which are highly resistant to environmental changes and can survive outside a host, making contaminated food and water significant sources of infection.

**Correct Answer:** D. Vector borne transmission