Answer: Matrix
Explanation:
Matrix structure is the structure in the form of grid where employee or workers report to one or more leader.Employee tend combine for working across their department along with performing operations in their own department in an organization.
According to the question, matrix structure should be used by defense contractor as he want reporting and link across the department for the project.
 
        
             
        
        
        
Answer:
<em>(e) top-down processing</em>
Explanation:
Since the brain is basically focused on the sensory systems higher. 
Higher-level stages of cognition such as reasoning, are therefore known to be at the top of the process of feeling and perception.
But at the other hand, low-level brain structures, like those participating in sight, touch, or hearing sensory systems, are known to be at the bottom. 
Top-down processing refers to how our brains use information that one or more of the sensory systems have already put into the brain.
It is a cognitive process that begins with our emotions, flowing down to functions at lower levels, such as the senses.
 
        
             
        
        
        
Answer:
prisoners 
Explanation:
Prisoners have been popular victims(research subjects) of illegal research in the past and so laws have been put in place to prevent this. 
Prisoners are classified as "vulnerable" under federal regulations that regulate research with prisoners. This is because their informed consent and voluntary decision to participate in any research brought before them is somewhat compromised. The health and human services(HHS) in addition to other regulations have added additional requirements for research on prisoners such as the requirement of a prisoner or prisoner representative in the IRB.