Please help I am confused between option (b) and (c)

What feature of cell theory is best demonstrated in the image

Y’all i need answers plss people are saying me and my brother look alike although we’re two different ages. one year apart i’m a girl, btw i’m thinking we could be fraternal twins idk my parents and my friends think we look alike

If you have a difficult time knowing where your hand is without looking at it you may be having a problem with your what ?