Rip my first horse she lived up to be 21 which is pretty normal for horses i will miss u and i hope to see u one day
rip- Ash - 2001-2021

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