A student uses her thumb to push a drawing pin (thumb tack) into a notice board. The pin goes into the board but does not penetrate her thumb. Which statement explains this? A The force exerted by the pin on her thumb is greater than the force exerted by the pin on the notice board. B The force exerted by the pin on the notice board is greater than the force exerted by the pin on her thumb. C The pressure of the pin on her thumb is greater than the pressure of the pin on the notice board. D The pressure of the pin on the notice board is greater than the pressure of the pin on her thumb.
