The correct answer to this question is D, Size 5. This question corresponds with a person's airways. LMA stands for laryngeal mask airway. It is a device used in hospitals to keep a patients airways open. This would be used when the patient is unconscious or undergoing a procedure whic requires anaesthsia.
LMA's were invented by Archibald Brain in the 1980's. He was an anaesthesiologist, who made the way for these masks to still be used today. The size of the mask is determined by the patients weight. Size 5 is for patients over 70 kg. Being that this patient is 75 kg, he would need a size 5 LMA.