氏: Choose Correct Kanji Stroke Order

Choose the combination items correspond to correct stroke order for the following kanji "氏" in Japanese.  In the stroke-independent case, there are 64 (= 8 * 8) combinations.

The combination of (3a) and (1b) is the best answer.  Also the combination of (5a) and (1b) is correct by redundancy rules of stroke primitives.  Don't forget that the straight stroke of North direction is inhibited and (5b), (6b), (7b) and (8b) are incorrect.

Please try to trace and check your stroke "氏" by  PC, iPhone, iPad or Android.