@oristarA,
Most people on here either don't have the background knowledge to answer this question or don't want to do your homework for you. Hasn't your professor given you instruction on how to answer the questions he gives you? Perhaps you should actually read the text from which the quote comes, because what you've posted here is some random's summary of Kant's words. Unless your teacher asked you to read this, I'm not sure that looking at this person's possible manipulation of Kant's words is the way to arrive at an accurate answer.
Given that I haven't read the Critique of Pure Reason, if I were to guess on this matter, I'd say that, based completely on my understanding of this:
Quote:and the practical concept of freedom as the independence of our will from the "coercion" or "necessitation through sensuous impulses".
"Necessitation through serious impulses" refers to the natural desires people have, which are succumbed to when they don't have control of themselves and instead allow nature's laws (?) to drive them. To be free, I think, in this sense at least, people must govern themselves.
My answer could very well be wrong. I'd encourage you to ask your professor and read more extensively, probably something Kant wrote.