A rod of length 2 units whose one end is `(1,0,-1)` and other end touches the plane `x-2y=2Z+4=0,` then a. the rod sweeps the figure whose volume is `b .pic .` d. cubic units. e. the area of the region which the rod traces on the plane is `f . g.2pih .` i. j. the length of projection of the rod on the plane is `k . l.sqrt(m .3n .)o.p .` q. units. r. the centre of the region which the rod traces on the plane is `s . t.(u . v. w.2/x .3y . z. , aa.2/b b .3c c . dd. ,-e e .5/f f .3g g . hh. ii.)dotj j .` kk.