For orientation of a plane table with three points A, B and C, Bessel's drill is
(A) Align B through A and draw a ray towards C, align A through B and draw A ray towards C, finally align C through the point of intersection of the previously drawn rays
(B) Align C through A and draw a ray towards B, align A through C and draw A ray towards B, finally align B through the point of intersection of
the previously drawn rays
(C) Align c through B and draw a ray towards A, align B through C and draw A ray towards A, finally align A, through the point of intersection of the previously, drawn rays
(D) In the first two steps any two of the points may be used and a ray drawn towards the third
point, which is sighted through the point of intersection of previously drawn rays in the final
step.
(A) Align B through A and draw a ray towards C, align A through B and draw A ray towards C, finally align C through the point of intersection of the previously drawn rays
(B) Align C through A and draw a ray towards B, align A through C and draw A ray towards B, finally align B through the point of intersection of
the previously drawn rays
(C) Align c through B and draw a ray towards A, align B through C and draw A ray towards A, finally align A, through the point of intersection of the previously, drawn rays
(D) In the first two steps any two of the points may be used and a ray drawn towards the third
point, which is sighted through the point of intersection of previously drawn rays in the final
step.