Suggested methods to identify objects in an object oriented architecture:

a. Use a grammatical approach based on natural language.

b. Reuse objects from a previous project.

c. Use a behavioral approach and identify objects based on what participates in what behavior.

d. Use a scenario-based analysis

A, C and D

Explanation:

Approaches that could be used to identify objects in an object oriented architecture includes;

1. The use of grammatical approach based on a natural language description of the system.

2. The use of scenario-based analysis. In this approach, the objects, attributes and methods in each scenario are identified.

3. Use a behavioral approach and identify objects based on what participates in what behavior.