Pl Help To determine how to vote on a bill, a senator calls random constituents to ask their opinion is it a oberservational study or survey or a experiment

Which statement best explains why cells were observed in more detail using a compound microscope than a simple microscope? a compound microscope has greater magnification ability than a simple microscope. the compound microscope was invented before the simple microscope. a compound microscope is much easier to manufacture than a simple microscope. compound microscopes were more common than simple microscopes.