(A) 3212
(B) 4320
(C) 4565
(D) 7689
Correct Option is: B
The word ‘SPORADIC’ contains 8 different letters.
When the vowels OAI are always together, they can be supposed to form one letter.
Then, we have to arrange the letters SPRDC (OAI).
Now, 6 letters can be arranged in 6! = 720ways.
The vowels (OAI) can be arranged among themselves in 3! = 6 ways.
Required number of ways = (720 x 6) = 4320.