A、Mark is a warm-hearted man. B、Mark is a curious man. C、Mark is an absent-minded man. D、Mark is an impatient man. C

M: Ouch, how can the sand be so hot when the water’s still cold? My feet feel like getting blisters.
W: Now, Mark, were you sleeping when Professor Brock gave that lecture on specific heat in physics class?
M: I didn’t come to San Diego on spring break to talk about Professor Brock’s physics class.
W: I know, me neither, I was just answering your question, that’s all.
M: What question?
W:(l)You weren’t even paying attention to your own question.
M: I was just complaining about the hot sand. Considering what the water’s like, I wonder how the sand can be so hot?
W: Well,(2)Professor Brock’s lecture on specific heat might give you a clue. Water has a higher specific heat than sand.
M: Then why is the sand so much hotter if water has a higher specific heat?
W: Don’t you remember? Specific heat is the energy needed to raise the temperature of something. If something has a high specific heat, like water, it takes more energy to raise its temperature.
M: I see. So you are saying that something with a high specific heat, like water, doesn’t get hot as fast as something with a low specific heat, like sand, right?
W: Right. So sand gets hot faster during the day, that’s why it’s so hot while the water’s still cool.
M: I guess you are right,(3)I should have paid more attention in class.