To solve this problem, we need to identify which of the given muscular disorders is inherited. Let's analyze each option:$\newline \bullet$Option 1: Tetany$\newline$ - Tetany is a condition characterized by muscle cramps and spasms due to low calcium levels in the blood.$\newline$ - It is not an inherited disorder but rather a result of electrolyte imbalances.$\newline \bullet$Option 2: Muscular dystrophy$\newline$ - Muscular dystrophy refers to a group of genetic disorders that cause progressive weakness and loss of muscle mass.$\newline$ - It is inherited and caused by mutations in genes responsible for muscle structure and function.$\newline \bullet$Option 3: Myasthenia gravis$\newline$ - Myasthenia gravis is an autoimmune disorder that leads to muscle weakness.$\newline$ - It is not typically inherited but results from the immune system attacking the neuromuscular junction.$\newline \bullet$Option 4: Botulism$\newline$ - Botulism is a rare but serious illness caused by a toxin produced by the bacterium Clostridium botulinum$. \newline$ - It is not inherited and usually results from consuming contaminated food.$\newline$Based on the analysis, the correct answer is Option 2: Muscular dystrophy, as it is the only inherited disorder among the options provided.