If we compare and contrast the three liquids seen in the jar, the BEST explanation would be that A)
water is lighter than oil and syrup.
B)
syrup is the thickest liquid of the three.
oil is the least buoyant of the three liquids.
D)
water is denser than oil but less dense than syrup.

B

Explanation:

Its B because  if the mass decreases but the volume stays the same, then density goes down. Lighter liquids like water or vegetable oil are less dense than heavier liquids like honey or corn syrup so they float on top of the heavier liquids.

So syrup would go first then water then oil if you were doing an experiment.

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.