A. 10400
B. 30400
C. 50400
D. 70400
In the word CORPORATION, we consider the vowels OOAIO as one letter.
Then, we have CRPRTN (OOAIO).
Now we have 7 letters of which R occurs 2 times.
Number of ways arranging these letters = 7! / 2! = 2520 ways
Now, in 5 vowels in which O occurs 3 times
Number of ways arranging vowels letters = 5! / 3! = 20 ways
=> Required number of ways = (2520 x 20) = 50400