7 red roses and 3 white roses of different sizes be strung in the form of a garland random- The probability that no two white roses come together is - dfrac -5-12- dfrac -1-21- dfrac -1-12- dfrac -5-4-

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7 red roses and 3 white roses of different sizes be strung in the form of a garland at random. The probability that no two white roses come together is :51212111254

$7$ red roses and $3$ white roses of different sizes be strung in the form of a garland at random. The probability that no two white roses come together is :
$\frac{5}{12}$
$\frac{1}{21}$
$\frac{1}{12}$
$\frac{5}{4}$