Answer:
B. National Security.
Step-by-step explanation:
A national security expert or adviser refers to an individual who is saddled with the responsibility of gathering intelligence, security updates and informations in order to strengthen or fortify the security architecture of a country.
Basically, a national security expert or adviser should be very skilled at interviewing people at various locations to enable him or her gather strategic data (informations) and piecing together these informations to explain a situation.
In this scenario, Owen primarily works out of his home office, but frequently travels to other areas to do an investigation. Therefore, the career pathway that Owen most likely works in is National Security.