Given first 5 prime numbers are =2, 3, 5, 7, 11

We know the formula,

 $\mathrm{Average} \left(\mathrm{A}\right)=\frac{\mathrm{Sum} \mathrm{of} \mathrm{given} \mathrm{values} \left(\mathrm{S}\right)}{\mathrm{Total} \mathrm{number} \mathrm{of} \mathrm{values} \left(\mathrm{N}\right)}$

 Here,

 Sum of given values (S)

=2+3+5+7+11

= 28

Total number of values (N)= 5

Substituting these values we get (A),

 $= \frac{28}{5}=5.6$

Hence, Option A is correct.