( )

A                                                   

D

1)-----------------------------------------------------------------------------------------------------------------------------------

2)--3----3-3-2--------------3----3-3-5-7----5-3-5-3-2-3-2----3----3-3-2------------------2----5----8-8-8-8--------

3)----------------2--4-2-------------------------------------------------------------2--0-----2----------------------------------

4)--------------------------------------------------------------------------------------------4-------------------------------------