When measuring the volume of water in a graduating cylinder, you measure. at the top of the meniscus
from the bottom of the meniscus
from the exact top of the liquid
the average between the volume at the top of and the bottom of the meniscus

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.