The correct answer is "grammar"
Linguist is a person who studies languages, semantics is the science of word and sentence meaning, and arbitrary means that something is subjected to individual will or judgement.
Answer:
She should use a checklist to see what she needs to do. It should be ordered from most important to least important.
Explanation:
This will help since she will be more organized mentally so she won't have any stress coming to her.
An adjective describes a noun. For example, The big basketball is hard to carry. "big" is the adjective.