Answer;
Light microscope
Explanation;
A light microscope uses focused light and lenses to magnify a specimen, usually a cell.
Light microscopes may be simple microscopes or compound microscopes.
Simple microscopes uses a single lens to magnify an object and cannot reach high magnification.
Compound light microscopes use two sets of lenses that is; an objective lens and an eyepiece, to produce images.
Yes, however, random people should not just be taught because people have a tendency to not follow every step, and can hurt themselves. I learned about this, and that if you modify a persons DNA, that's permanent. If you messed up, your offspring could be impacted. This is why we don't just give out information, because people are afraid that if we messed up, we could end the world or something.
The correct answer is B. Seismometer, Seismometers are used to measure motion in the ground (seismic waves) created by earthquakes and volcanic activity. These machines allow seismotologist to map and measure these events.