Final answer:
The statement that choice opportunities are occasions when an organization usually makes a decision in the context of the garbage can model is true, as it reflects the model's depiction of organizational decision-making.
Step-by-step explanation:
In the context of the garbage can model, the statement that choice opportunities are occasions when an organization usually makes a decision is true. The garbage can model, developed by Cohen, March, and Olsen in 1972, sees organizations as a collection of choices looking for problems, issues and feelings looking for decision situations in which they might be aired, solutions looking for issues to which they might be the answer, and decision makers looking for work.
This model illustrates the chaotic reality of organizational decision-making, where choices are made as problems, solutions, participants, and choice opportunities happen to align. Thus, choice opportunities are indeed seen as the moments where decisions are commonly formulated, although not necessarily in a linear or rational process.