Fred is afraid to leave his house, and he is extremely apprehensive every time he has to go out in public. fred is most likely to be diagnosed with which type of disorder?

Fred is most likely to be diagnosed with Agoraphobia which is an anxiety disorder.

Explanation:

There is an anxiety disorder called agoraphobia in which a person afraid of leaving the environment in which they are living or the environment they considered to be safe.  

People who have this disorder might often feel their homes as the safest place and do not leave their homes for months. They get afraid when they go in public and a crowded place because they feel unsafe there which can generate panic attacks in them. So Fred is most likely to be diagnosed with agoraphobia which is an anxiety disorder.

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: