Yes it is C but for future reference, both A and B are referring to solids, and D is referring to a gas, hope this is helpful later!
Answer:
C) "All living things have value and should be helped"
<span>C. Glycolysis
Krebs cycle and ETC only occur during aerobic respiration</span>
So,
There is a scientific consensus that life exists on other planets
and
The scientists only studied one meteorite
The first one because the other ones don't make sense, and because it is a scientific consensus. The latter because they only studied one, and imagine if they studied other ones...