Aflower petal can be a good focal point.

true or false?

True.

Almost anything can be a focal point, you just need to know how to take the picture and make it look appealing.

Even rain drops on a petal can be a focal point.

Focus,size, colour shape are somethings to think about. You can always look up a bunch of examples to get a better understanding of what you can do.

Ibelieve the answer  is b.

This would be tesserae.