Question

the three criteria used to determine whether the use of force is justified are lawfulness, necessity, and

a. lethality
b. proportionality
c. sustainability
d. reasonableness

Explanation:

In the context of determining the justification of force use (a topic related to law, a sub - field of Social Science), the three criteria are lawfulness (compliance with the law), necessity (the force is needed), and proportionality (the force used is in proportion to the threat). Lethality (a) is about causing death and not one of the standard criteria. Sustainability (c) is more about environmental or long - term viability and not relevant here. Reasonableness (d) is somewhat related but not as specific as proportionality in this legal - force - justification context.

Answer:

B. proportionality