scarcity requires people to\na trade stock.\nb make choices.\nc invest money.\nd seek government assistance.

Brief Explanations:

Scarcity means limited resources. When resources are scarce, people must decide how to allocate them, which involves making choices. Trading stock, investing money, and seeking government - assistance are specific actions that may or may not be related to the general concept of dealing with scarcity. The fundamental response to scarcity is making choices.

Answer:

B. make choices