What is the units digit of (147^25)^50 ?	Choose the correct choice from the following answers:
A) 1 B) 3 C) 5 D) 7 E) 9
The units digit of the exponents of 7 repeat in a cycle of four, which is {7,9,3,1}. The number 25 has the form 4n+1 so the units digit is 7 inside the bracket. The exponent 50 has the form 4n+2, so the units digit is 9. The answer is 9.
<result>E</result>
What is the units digit of (147^25)^50 ?