Answer:
The correct answer is option D) "having sufficient magnification available".
Explanation:
Compound light microscopes are image magnifier instruments that have more than one lens to chose from. This feature contrast with the first microscopes that were created that had only one lens. The feature of having just one lens limited the amount of magnification that the microscope can produce. Later, when compound light microscopes were created by the Janssens, have sufficient magnification available was no longer a concern.
