The function d(s) = –5s – 15 models the depth, in feet, of a rock that Dante dropped into a lake s seconds after he lost sight of the rock. What is the meaning of the x-intercept? Question 4 options: A)Dante lost sight of the rock when it was 15 ft below the lake’s surface. B)Dante saw the rock for 15 s before losing sight of it. C)Dante lost sight of the rock when it was 3 ft below the lake’s surface. D)Dante saw the rock for 3 s before losing sight of it.