What is the number of digits in 7^(25), ...

What is the number of digits in `7^(25), 8^(23)` , and `9^(20)` respectively ? [Given `log_10 2 = 0.301, log_10 3 = 0.477, log_10 7 = 0.845`]

A

21, 20, 19

B

20, 19, 18

C

22, 21, 20

D

22, 20, 21

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