If $$P = a^{3} \times b^{5} \times c^{11} , Q = a^{8} \times b^{9} \times c^{5} R = a^{15} \times c^{23}$$ , then what is the HCF of P, Qand R?

A

$$a^{3} \times c^{5}$$

B

$$a^{15} \times b^{9} \times c^{23}$$

C

$$a \times c$$

D

$$a^{26} \times b^{14} \times c^{39}$$