You would use a Dictionary. Dictionaries show denotative meanings while thesauruses show synonyms.
It is one of at least five forms of locomotion used by snakes, the others being lateral undulation, sidewinding, concertina movement, and slide-pushing. Unlike all other modes of snake locomotion, which include the snake bending its body, the snake flexes its body only when turning in rectilinear locomotion.
I believe it’s A, I’m not sure tho srry if it’s wrong
Informal means slang or figurative syntax and so on therefore the answer would be D
A comparative essay requires you to compare and contrast two or more things. Develop a strong thesis statement, make sure when you write it is organized, and make sure you don't go off topic. Hope this helps! Good luck