human
Question: Stem cells are cells that can differentiate into many different kinds of cells. Scientists have discovered that the environment supporting the cells influences stem-cell differentiation. For example, stem cells grown on strong, flexible surfaces became muscle cells. What most likely happened to stem cells grown on a hard, rigid surface?

Choices:
A) They became nerve cells.
B) They became red blood cells.
C) They became bone cells.
D) They became skin cells.
gpt
The correct answer is 2: They became bone cells..