One night, when henry got home and flipped on the light switch, the kitchen exploded leaving him severely injured. the explosion was caused by the failure of the gas connector to the range, which allowed a large amount of gas to escape, and a small spark created by turning on the light caused it to explode. henry sued the gas corporation, arguing that it knew the connector was defective but it did not warn its customers. he won the lawsuit on the grounds of:

He won the lawsuit on the grounds of Recklessness.

That means the company who provided the range knew that its gas connector is lose and it can be dangerous for the buyer, but the company didn't bother and dealt it with carelessness and made a severe negligence. This carelessness resulted in the severe injury of the buyer. So he was on the right to sue them for their negligence and lack of care. Thus he won the lawsuit on the grounds of company's recklessness.

answer; niosh, the national institute for occupational safety and health;