witch one is a viral disease?

1.tuberculosis 2.smallpox 3.anthrax or 4.tetanus?

The viral disease out of the options you provided is smallpox.

To determine which one is the viral disease among the options, you can begin by understanding the nature of each disease. Tuberculosis, anthrax, and tetanus are bacterial infections, whereas smallpox is caused by a virus.

However, to be absolutely certain, you should cross-reference this information with reliable sources such as medical textbooks, reputable health websites, or consult with a medical professional.