What does a sound scientific conclusion most likely rely upon?

If you are in a chronic state of anxiety but also suffer from moment of sudden, intense fear you are problably suffering. from

The observations of hooke and van leeuwenhoek documenting the existence of microscopic cells formed the basis of what important theory? a. the cell theory stating that all living things are composed of cellsb. the theory of spontaneous generation, which held that life forms could arise spontaneouslyc. the theory of chemotherapy, or use of antimicrobials to destroy pathogenic organismsd. the germ theory of disease and causative agents

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone