A loaded word is a word that not only informs but also caries some emotion with it, such as condemning, exciting, praising.
In the statement above the loaded word is "crushing" - it makes a qualitative statement about the defeat: it was a very definite defeat.
Temperature has a direct effect on whether a substance exists as a solid, liquid or gas. Generally, increasing the temperature turns solids into liquids and liquids into gases; reducing it turns gases into liquids and liquids into solids.
I think it would be either C or A, but I think C is more right than A
It usually appears as an individual section called Reference.
It locates at the end of the essay, and they are labeled correspondingly with notice in the previous sections as well.