A_regular_cone_having_its_axis_parallel_to_H.P_and_perpendicular_to_V.P_at_first_but_then_the_cone’s_axis_keeping_parallel_to_H.P_and_rotated_such_that_its_new_axis_is_perpendicular_to_previous_axis._The_top_view_of_the_previous_and_later_one_is_______________$

• A. Circle, triangle
• B. Circle, triangle with circular base
• C. Triangle, triangle
• D. Circle, circle