To solve the problem, we need to identify the cause of Trichomoniasis.
1. Understanding Trichomoniasis:
Trichomoniasis is a sexually transmitted infection (STI) caused by a protozoan parasite called *Trichomonas vaginalis*. It is not caused by bacteria, fungi, or viruses.
2. Analyzing the Options:
Let's evaluate each option to determine the correct cause:
3. Conclusion:
Trichomoniasis is caused by a protozoan parasite.
Final Answer:
The correct answer is (C) Protozoan.

Two concentric thin circular rings of radii 50 cm and 40 cm each, carry a current of 3.5 A in opposite directions. If the two rings are coplanar, the net magnetic field due to the two rings at their centre is: