The egg of which helminth can be concentrated in saturated solution –
**Core Concept**
The question is inquiring about the concentration of helminthic eggs in a saturated solution, which is a technique used in parasitology for the detection and diagnosis of helminthic infections. This concept is based on the principle of sedimentation, where the eggs of certain helminths can be concentrated and separated from the surrounding fluid.
**Why the Correct Answer is Right**
The correct answer is based on the fact that the eggs of *Ascaris lumbricoides*, a type of roundworm, can be concentrated in a saturated salt solution. This is because the eggs of *Ascaris* are denser than the surrounding fluid and can be separated from it by sedimentation. The saturated salt solution acts as a centrifuge, allowing the eggs to settle at the bottom of the container.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because the eggs of *Toxocara cati* are not concentrated in a saturated salt solution. While *Toxocara* eggs can be detected through other methods, they are not typically concentrated using this technique.
* **Option B:** This option is incorrect because the eggs of *Taenia saginata* are not typically concentrated in a saturated salt solution. While *Taenia* eggs can be detected through other methods, this technique is not commonly used for their concentration.
* **Option C:** This option is incorrect because the eggs of *Hookworm* species are not concentrated in a saturated salt solution. While hookworm eggs can be detected through other methods, this technique is not typically used for their concentration.
**Clinical Pearl / High-Yield Fact**
One important point to remember is that the concentration of helminthic eggs in a saturated solution is a specific technique used for the diagnosis of *Ascaris lumbricoides* infections. This technique is not typically used for other types of helminthic infections.
**Correct Answer:** C.