If every family has 8 or 10 children, what will be its effect on the countries population?

The correct answer is  "a) has ingredients that are high in nutrients."

Bmust be the answer, as technically all organs move, so a is incorrect. all organs are made of different types of cells, so that isn’t a problem, so c is also incorrect. human hearts are very similar to many other animals’ hearts, so d is also incorrect, yet the heart is made of muscle, which is hard to grow in the lab so it would be correct to say b