Question

to be considered terroristic, the threat must

be reasonable and credible

involve international terrorist groups

involve domestic terrorist groups

be directed towards a government official

Explanation:

For a threat to be considered terroristic, it must be reasonable and credible. Terroristic threats don't necessarily have to involve international or domestic terrorist groups, nor do they have to be directed towards a government official specifically. The key is the credibility and reasonableness of the threat in terms of the potential to cause fear and harm in a terror - related context.

Answer:

Be reasonable and credible