Uncultured
Dreamer/Cynic
Really confused regarding the Ninjutsu score table. Rengetsu has 4 (+4) so from what I understand, he has access to 5 d ranks, 2 c ranks and 1 b rank. With the Score + half modifier he can then choose 6 out of those options? I.e. 3 D ranks, 2 C ranks and 1 B rank?
You have it correct. You have a score of 8, giving you access to all the techniques you listed. The total number of techniques you can have is 6 however because its base (4) + 1/2 bonus (2).
So you can have 1 B, 2 C, 3 D, for example.