The third one should be right
The correct answer is A. The word "exhausted" is the most important to understanding the idiom "hit the hay."
The idiom "hit the hay" means to go to sleep. The student wants to go to sleep because she is exhausted. If the student were not so tired, she would not need to go to bed just yet.
Therefore, the word that best clarifies the meaning of the idiom is "exhausted."
The rock formations in the Rocky Mountains and Great plains is said to be different yet have similar amounts of certain minerals because the rock of Rocky Mountains is igneous rock while the rock of the Great Plains is sedimentary.When sediment is firmly pressed and cemented together, it leads to formation of sedimentary rock but when Magma cools it form igneous rock when it's hardens
<em>M</em><em>A</em><em>R</em><em>K</em><em> </em><em>M</em><em>E</em><em> </em><em>A</em><em>S</em><em> </em><em>A</em><em> </em><em>B</em><em>R</em><em>A</em><em>I</em><em>N</em><em>L</em><em>I</em><em>E</em><em>S</em><em>T</em>