Adoctor diagnoses a man with an acute strain. which job is most likely to cause an acute strain?

There are numerous jobs in the world that can cause a person to get an acute strain. Some jobs that can cause an acute strain are furniture movers, athletes, cheerleaders, gardener, etc. A dr should always be notified of an acute sprain just in case there is a small break. 

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