You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is A 5 year old boy suffering from Duchenne muscular dystrophy has to undergo tendon lengthening procedure. The most appropriate anaesthetic would be – and explain in detail?
Amongst the given options only a is applicable i.e. induction by thiopental and maintenance by halothane and N2O.

About option 'd'

In this option, upto induction is correct. However maintenance cannot be done only by oxygen.

About option b & c

Succinylcholine is contraindicated in muscular dystrophy.