Which number of planets are in oreader towards the sun?

a. mars, earth, venus, mercury, neptune, uranus, saturn, jupiter

b. jupiter, saturn, uranus, neptune, mars, earth, venus, mercury
c. neptune, uranus, saturn, jupiter, mars, earth, venus, mercury

12. ritu obtained a distinct image of a distant tree on the screen with the of a concave mirror.to find the focal length of the mirror she has to measure the distance between: (a) mirror and the tree. (b) screen and the tree.(c) mirror and the screen. (d) mirror and tree as well as between screen and the tree.