The Following Table Shows the Bases at Six Positions in a Region

The following table shows the bases at six positions in a region of nuclear DNA from five genera of ferns. A, B, C and D are genera within the Family Blechnaceae whereas E is from the Family Dicksoniaceae.
Base position 41 52 63 69 75 96
Genus A T G A C A C
Genus B C A A C G C
Genus C T G A C G T
Genus D C G A C G C
Genus E C A A T G C
The change (base substitution) at base position 52 is a synapomorphic character for genera

A) A and C only.
B) A, C and D only.
C) A, B, C and D only.
D) B and E only.
E) A and D only.