Which sentence uses the word lay correctly?
a.) my mother warned me not to lay in the sun.
b.) have you ever seen a horse lay down?
c.) caesar could hear the teacher asking students to lay the homework assignment on his desk.
d.) “leave me alone,” i said to my sister. “i just want to lay here for awhile.”

Among the options provided, the sentence which uses the word lay correctly is:

C.) Caesar could hear the teacher asking students to lay the homework assignment on his desk.

When a thing is placed somewhere as in this case the homework is required to be put on the desk, the use of lay is more correct. Whereas, when a person or any subject who wants to recline, the correct word to use is lie.