Which of the following statements is correct?​

A) ​Biological change in a species requires many generations.
B) ​Cultural change is almost always slower than biological change.
C) ​All cultural changes correspond to biological changes.
D) ​Within the same species, there are no group biological changes.

Biological changes in a species generally require many generations to occur, as they involve genetic mutations and natural selection over time. Cultural change can sometimes occur more rapidly through social learning and behavioral modifications. Option B is incorrect, as cultural change can sometimes be faster than biological change. Option C is incorrect, as not all cultural changes correspond to biological changes. Option D is incorrect, as there can be group biological changes within a species, such as adaptations to different environments or populations developing different traits due to isolation.