If $$a^{2} + b^{2} + c^{2} = ab + bc + ac$$, then the value of $$\frac{11a^{4} + 13b^{4} + 17c^{4}}{17a^{2}b^{2} + 9b^{2}c^{2} + 15c^{2}a^{2}}$$ is:

A

1

B

2

C

11

D

4