Seven persons A, B, C, D, E, F and G sit in a row facing north (not necessarily in the same order). F sits third to the right of B. D sits to the immediate left of B. D is not a neighbour of G. A sits second to the left of E. One person sits between C and D. Which of the following statements is correct?

I. F sits second to the left of G.

II. D sits at the extreme left end.