Helen is a researcher interested in topics such as cancer and heart disease. She wants her psychological research to address why some people get sick, how some people stay healthy, and what they do when they get sick in order to try to recover. Helen is likely a .a) primary care physician. b) neuropsychologist. c) cognitive psychologist. d) health psychologist.

d) health psychologist.                                                                  

Explanation:

Health psychologist: In psychology, the term "health psychologist" is described as an individual who is being engaged in several different tasks associated with "health and wellness". However, a lot of health psychologists tends to work directly in a few clinical settings in order to help different groups or individuals to promote healthy behavior and prevent illness and a lot of health psychologists conduct researches on "health-related issues".

In the question above, Helen is likely a health psychologist.

answer; i believe the best and correct answer is stronger bonds between the nations of africa;

the correct answer is modern american cars are not available due to trade restrictions.

trade between cuba and the united states have serious restrictions. the u.s. imposed an economic embargo on cuba, that among other things means that modern american cars are not available due to trade restrictions.

in response to some governmental actions of the authorities from cuba, president john f. kennedy proclaimed an embargo on trade between both countries in february 1962. the trade embargo remains active until this day and was implemented directly by the departments of commerce and the department of treasury.

in president trump’s administration, there is a national security presidential memorandum that "strengthens the policy of the u. s.", affecting trade with cuba.