The correct answer is: Only I and III follow.
The first statement is “All terrorists are guilty.” The second statement is “All terrorists are criminals.” The first statement implies that if someone is a terrorist, then they are guilty. The second statement implies that if someone is a terrorist, then they are a criminal.
The first conclusion is “Either all criminals are guilty or all guilty are criminals.” This conclusion does not follow from the first two statements. The first statement does not say anything about all criminals, and the second statement does not say anything about all guilty people.
The second conclusion is “Some guilty persons are criminals.” This conclusion does follow from the first two statements. The first statement says that all terrorists are guilty, and the second statement says that all terrorists are criminals. Therefore, some guilty people must be criminals.
The third conclusion is “Generally criminals are guilty.” This conclusion does not follow from the first two statements. The first statement does not say anything about all criminals, and the second statement does not say anything about all guilty people.
The fourth conclusion is “Crime and guilt go together.” This conclusion does not follow from the first two statements. The first statement says that all terrorists are guilty, and the second statement says that all terrorists are criminals. However, this does not mean that all criminals are guilty, or that all guilty people are criminals.
Therefore, the only conclusion that follows from the first two statements is “Some guilty persons are criminals.”