A word consists of $11$ letters in which there are $7$ consonants and $4$ vowels. If $2$ letters are chosen at random, then the probability that all of them are consonants, is
A word consists of $11$ letters in which there are $7$ consonants and $4$ vowels. If $2$ letters are chosen at random, then the probability that all of them are consonants, is
- A
$\frac{5}{{11}}$
- B
$\frac{{21}}{{55}}$
- C
$\frac{4}{{11}}$
- D
None of these
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