You are working as an emt diver assisting a search and rescue team in locating a private aircraft, which crash-landed and rapidly sank in a local lake. you are searching in approximately 80 feet of water, when you notice that your dive partner is beginning to act erratically, rapidly changing direction and swimming down into the bottom and stirring up silt. which of the following do you suspect is going on as you encourage him to ascend?
a. he is suffering from nitrogen narcosis. b. he is manifesting the signs of decompression sickness. c. he has developed "the squeeze."d. he has run out of air.