A 5 yrs old boy suffering from Duchenne Muscular Dystrophy and Polymyositis has been fasting for 8 hrs and has to undergo tendon lengthening procedure,which Anaesthetics should be used

• A. Induction by I.V. scoline and N2O halothane for maintenance
• B. Induction by I.V. propofol, N2O and O2 for maintenance
• C. Induction by I.V. thiopentone and H2O and halothane for maintenance
• D. Inhalational N2O, halothane and O2 for maintenance