Answer :
The condition which involves a cytotoxic hypersensitivity reaction is referred to as Myasthenia gravis and is denoted as option 3.
What is Cytotoxic hypersensitivity reaction?
This is referred to as the type of reaction which occurs in the body when the antibodies produced by the immune response bind to antigens on the patient's own cell surfaces.
This also leads to the destruction of the cells of the body and a condition which involves a cytotoxic hypersensitivity reaction is referred to as myasthenia gravis.
Myasthenia gravis is an autoimmune disorder which is characterized by the rapid fatigue of muscles under voluntary control which is as a result of the destruction of the neuromuscular connections which is therefore the reason why it was chosen as the correct choice.
Read more about Myasthenia gravis here https://brainly.com/question/13792132
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The options are:
1. Graves' disease
2. Contact dermatitis
3. Myasthenia gravis