What does the sun supply to a leaf?

starch
water
light energy
gas

The sun supplies energy to the leaf by photosynthesis. It turns the sun's rays into sugar, which supplies energy to the leaf.

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