According to the Preamble, the action that represents an appropriate role for government is B. Ensuring justice for all citizens.
All the points that are mention in the Preamble refer to fairness, equality, and security.
Option A is not correct because even when the constitution talks about the way the government has to work in order to give citizens what it is offered as a country, this part is about those specific things the people are being promised and offered.
Option C is not correct because it talks about a totally different topic bringing taxes as the main topic which doesn't match with the general idea of the preamble.
Option D is not correct because it talks about work which is never mentioned in this part of the constitution besides that it doesn't cover the full idea of the preamble