What is the value of $\frac{5}{3}$ times sum of all the prime factors of 68?

The correct option is A $\frac{95}{3}$
First finding out the prime factorisation of $68$.
$68=2\times 2\times 17$

Prime factors of 68 are 2 and 17.

Sum of prime factors of $68$ will be $2+17=19$

Now, according to question
$\frac{5}{3}\times 19=\frac{95}{3}.$