Multiple Choice Question (MCQ)

Question: Which validation rule accepts only a - z letters for fields in Access?
A. Is null or NOT like ?*[! a - z]*?
B. Is null or NOT like ?*[a - z ]*?
C. Is null or NOT like ?*![a - z]*?
D. Is null or NOT like ?[! a - z]?
Correct Answer: Is null or NOT like ?*[! a - z]*?