Follow Y heads…. maybe Y chomosomes and C_A

C_A is maybe C1A only in males and rare

Haplogroup C-F3393 from Wiki

exerpt :Of the two primary branches, C1b is common in parts of Oceania and Asia. The other primary branch, C1a, is extremely rare worldwide and has been found mainly amongst individuals native to Japan or Europe and among Upper Paleolithic Europeans, with single cases known from Nepal and Jeju Island through academic studies and from an ethnic Armenian, an ethnic Kabyle, and an ethnic Han from Liaoning province of China through commercial testing.

excerpt:Among the most interesting findings of recent genetic research is that living members of C1a are also rare and distributed geographically in an extremely bifurcated pattern.

C1a1 or C-M8 is now found regularly only with low frequency (approximately 5% of all samples) in Japan.[4]

C1a2 (known previously as C6) or C-V20 now appears to be found only among European, Kabyle, Armenian, and Nepali males.[5][6]

• time of the Villabruna cluster, however, the dominant Y-DNA haplogroup in Western Europe was I2.

link: https://en.wikipedia.org/wiki/Haplogroup_C-F3393#C1a_(CTS11043)