If you’re good with permutations in math 30 please help answer the question below A license plate consists of 3 letters, followed by 3 numbers. Repetitions are not allowed. If any letter may be used except for U and I, and the allowed digits are 3, 4, 5, 6, 7, 8, and 9, how many different license plates can be produced?

a) 500 405

b) 900 800

c) 1 059 776

d) 2 550 240