A student looks at a human egg cell using a light microscope. The cell has a diameter of $0.12\ \text{mm}$. The student then produces a diagram of the egg cell, and the diagram’s diameter is $4.2\ \text{cm}$. What is the magnification of the drawing to the nearest whole number?
- A$\times 5$
- B$\times 35$
- C$\times 50$
- D$\times 350$