For O'Neill, Why Doesn't the Kantian's Focus on Intentions Preclude

For O'Neill, why doesn't the Kantian's focus on intentions preclude a focus on the results of actions?

A) Because in addition to intentions, Kantians are also concerned with maximizing happiness
B) Because our intentions reflect what we expect the immediate results of our actions to be
C) Because there is no reason a Kantian can't also be concerned with results
D) The Kantian's focus on intentions does preclude thinking about the results of actions