Respuesta :
Answer:
Option A
Explanation:
There are basically two hypotheses that explains the evolution of six ectomorphs
a) When the ectomorphs were evolving the island was in contiguous state. Due to this plate tectonic movement was high that ultimately led to the division of island into six different islands which caused these ectomorphs evolve separately due to the geographical barrier.
b) Second theory could be that all ectomorphs evolved on the same island but then with the division of island, they got separated.
Hence, option A is correct