I believe the answer would be D: a current study on the effects of stress on the body published by a medical journal.
Hope this helps.
Tom probably thinks Mr.Weems is up to something strange like robing a bank or something.
B identify the decision to be made or the problem to be solved
It prevented the Allies from knowing what the Soviets were up to
According to the description of this job, that person is keen on to express himself, to share his ideas. Since the environment is active, there is going to be an exchange of ideas and the job would be research-based. Therefore, the jobs related to marketing and PR would be better match for this person.