19 Scientists found that the rifting of the bottom of the ocean has never stopped. This discovery may answer a question that has attracted people's attention. The time of the earth every day is prolonged by 1/700 seconds compared to the previous day, that is, every year, one day is extended.0.5 seconds. According to this prediction, in another 200 million years, there will be only 250 days in a year. The most accurate answer to "a question that has caused people's attention" is:. ["The rift in the bottom of the ocean expands and the Earth's running time is extended.", "Fissures at the bottom of the ocean extend, shortening Earth's operating time.", "The rift in the bottom of the ocean expands and the Earth's rotation slows down.", "Fissures at the bottom of the ocean expand and Earth's rotation speed accelerates."]