Which statement is true about biological agents according to the material?

• A. They are very easy to distribute effectively
• B. The two most popular biological agents among terrorists are anthrax and ricin
• C. They are not hazardous to humans
• D. They cannot be detected easily

Answer: (B)

Biological threats in this material are framed around how terrorists are often discussed in relation to real-world hazards. The statement that anthrax and ricin are the two agents most commonly mentioned in terrorist threats is the true one because these two are repeatedly cited in threat assessments and training as representative examples—anthrax as a biological agent and ricin as a toxin—highlighting the kinds of hazards that suspects may reference and the broad range of impacts they could imagine. The other statements don’t fit the material: distributing biological agents effectively is not easy in practice, these hazards are hazardous to humans, and while detection can be challenging, it isn’t accurate to say they cannot be detected easily since there are detection methods and indicators used in screening and response.