Preparing for jobs that are high in demand allow you to ...

Focus your development of human capital on those careers

Increase the likelihood of getting a job

Be more attractive to employers in those fields

all of the above

Preparing for jobs that are high in demand allows an individual to focus their development of human capital on those careers.

Focus your development of human capital on those careers

Explanation:

As the demand for the job is high, there is no denying the fact that it will increase the likelihood of getting a job. It is a simple proportion, more the number of jobs, more are the chances of getting them.

Last but not least it will also allow an individual to be more attractive to employers in those fields. As an individual prepares for the job, they will acquire certain skills and knowledge that are capable of letting them being perceived as attractive.