Which of the following will ne next choose the correct options ?

Answer

D

Explanation

In the subsequent figure the `(***)` moves one and one and a hlaf steps in clockwise direction alternately, the design `(Tbar)` rotates through `90^(@)` and `135^(@)` clockwise alternately while the design rotates `45^(@)` and `90^(@)` anticlockwise alternately.