 Okay, friends, welcome. So here is a question. This is again on kinematics and I think this texts the concept of displacement. So whenever displacement word comes, we will immediately recollect that displacement is nothing but shortest distance between the two points, right? So now in this case, what is given the initial and final position vectors of the point, all right? So if you try to visualize it, in the coordinate axis, what you'll get here as, let's say this is the first position vector, okay? And this is the second position vector, okay? So this position vector is the first one, this one and this position vector is the second one. So let's say this is R1 position vector and that is R2 position vector, okay? So we need to find the displacement of the particle. So particle is going from this point to that point, right? So displacement is what? Displacement vector is this, okay? So let's call this as A vector, all right? Now you can see that there's a triangle getting formed. So you can apply triangle law of addition and you can say that R1 vector plus A vector is equal to what? R2 vector, fine. So A vector will come out to be equal to R2 minus R1 vector, all right? So you can get the displacement vector as R2 is what? 9i plus 2j minus 8k. This is R2 minus R1, that is minus of 3i plus 2j plus 8k, right? So if you subtract these two vectors, you'll get the displacement vector A to be equal to 9 plus 3, that is 12icap, okay? Then your j vector will go off 2i minus, sorry, 2j minus 2j will become zero, right? And then minus 8k minus 8k will become minus of 16j, okay? So this is what you'll get this vector A, which is also that vector along the displacement, fine? So we can say that this is the displacement vector and hence option number C is correct over here, all right? Thank you.