A student uses a force meter to determine the weights and a balance to find the masses of four different objects. He records his measurements in a table. Which row is recorded correctly?
- A$1\ \text{kg},\ 10\ \text{N}$
- B$5\ \text{g},\ 50\ \text{N}$
- C$10\ \text{N},\ 100\ \text{kg}$
- D$20\ \text{kg},\ 2\ \text{N}$