Question

which microscope did robert hooke use to study tree bark? electron microscope compound light microscope simple microscope scanning microscope

Explanation:

Robert Hooke used a compound light microscope to study tree - bark and coined the term "cell" when observing the cork structure under it. Electron microscopes and scanning microscopes were developed much later. A simple microscope has a single lens, while Hooke's was more advanced with multiple lenses.

Answer:

B. compound light microscope