Have you tried to look this up on Quizlet. I just had a similar question on one on my quizzes & the whole test was on Quizlet
The voltage from one side of the battery all the way around to the other side of the battery is 12v .
If 4 of those volts show up across the circle-thing, then the rest of the 12v ... 8v ... Must show up across the set of parallel rectangles.
To get that answer, I subtracted the 4 from the 12.
Just like it says in choice-C.
The blades that spin around in the fan, because they are flat and produce work
the main strenght is each person has a job and the weekness is they are poor