Hi i am new to this site.so don't mind if my answer is wrong. Let us name the sticks first as shown in figure. Now take the pattern from top to bottom.the pattern like this in first column first two symbols combination opposite is third symbol.like 1symbol+2symbol=opposite symbols of(1+2) which is 3rd symbol in first column.and same in second column also. i.e bubble stick goes as strip in answer and strip goes as bubble stick. Now in third row first symbol is of one bubble and one strip has to combine with plain sticks, so answer symbol will be just place the opposite sticks in corresponding places. So answer is 4th option.
