Aprimary role of a sports physician
a. involves working with clients to improve their basic motor skills
b. includes the diagnoses of sports injuries
c. entails motivating people during exercise routines
d. none of the above

The answer is letter B. 

Sports Physicians are responsible for diagnosing and possibly treating some of the common injuries that occur in different types of sports. Sports physicians undergo the same training that other regular physicians go through except that their specialization is with sports injuries and how to prevent and treat them. They are commonly associated with sports teams and are often found in the ring of action because they tend for immediate medical assistance upon the onset of an injury.

Bmust be the answer, as technically all organs move, so a is incorrect. all organs are made of different types of cells, so that isn’t a problem, so c is also incorrect. human hearts are very similar to many other animals’ hearts, so d is also incorrect, yet the heart is made of muscle, which is hard to grow in the lab so it would be correct to say b