Answer:
The effects from this condition are described as hereditary.
Step-by-step explanation:
"Muscular dystrophy" is inherited because it results from a faulty gene that a person acquires from his parent(s), unlike "muscle strain" that is caused by an injury to a muscle or tendon. This makes the first choice correct.
People with muscular dystrophy experiences progressive weakness. This means that it affects their balance and ability to walk. Example, they could be walking on toes or have hard time rising from a sitting position. This makes the last choice incorrect.
A person with "Myotonic" type of muscular dystrophy cannot relax his muscles after contraction. This makes the second choice incorrect.