Within our galaxy alone there are around 500 solar systems (or so many we have discovered so far): so the statement is clearly wrong and the correct answer is b) False.
There are a lot more starts in the galaxy, but not all of them have planets around them - so not all of them have a solar system
My answer for this question is A London
I believe answer b is the most suitable for this question.
Your answer is measure the distance between places. Map scale refers to the relationship (or ratio) between distance on a map and the corresponding distance on the ground.
