Ten one-rupee coins are put on top of each other on a table. Each coin has a mass m. Which statement of the following is not true?

Options

A. The force on the `6^th` coins (counted from the bottom ) ue to all the coins on its top isequal to 4 mg (downwards).
B. The force on `6^th` coin due to `7^th` coin is 4 mg (downards).
C. The reaction of the `6^th` coin on the `7^th` coin is 4mg (upwards).
D. The total force on the `10^th` coin is 9 mg (downwards).