What characteristics should you look for in shoes

They are cool, they are different brands, and they have Velcro and tie shoes

For a good solid pair of shoes. You have to have good ankles and arch support. And of course comfort level

The answer would be a

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