Asubmarine started at sea level and was 400 meters below sea level in 10 minutes. which statement correctly explains the submarine’s rate of movement? a. since = 40, you find that the submarine ascended at a rate of 40 meters per minute. b. since = –40, you find that the submarine ascended at a rate of 40 meters per minute. c. since = 40, you find that the submarine descended at a rate of 40 meters per minute. d. since = –40, you find that the submarine descended at a rate of 40 meters per minute.