The number of words not starting and ending with vowels formed, using all the letters of the word $'UNIVERSITY'$ such that all vowels are in alphabetical order, is
The number of words not starting and ending with vowels formed, using all the letters of the word $'UNIVERSITY'$ such that all vowels are in alphabetical order, is
- A
${}^8{C_4}.6!$
- B
${}^8{C_4}.8!$
- C
${}^8{C_6}.6!$
- D
${}^8{C_4}.7!$
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$^n{P_r}{ \div ^n}{C_r}$ =
$^n{P_r}{ \div ^n}{C_r}$ =