Which statement best describes the development of theories that connected microscopic and macroscopic phenomena?

It only took a few decades for scientists to develop current theories, and they are essentially concrete.

It took several hundred years for scientists to develop current theories, and they are essentially concrete.

It only took a few decades for scientists to develop current theories, and they are still being revised to this day

It took several hundred years for scientists to develop current theories, and they are still being revised to this