Concept:The sentence needs the correct past tense of the verb "lie," meaning to stay in a hidden position.
Explanation:The tiger is singular, but the sentence describes a past action, so "lay" is the simple past tense of "lie."
"Lie" (present), "lay" (past), "lain" (past participle).
"Laid" is past tense of "lay," meaning to put something down, which does not fit here.
Thus, "The tiger lay in wait for its prey" is correct.
Answer:D. lay