The most likely answer will be B. Overfishing is still a large issue today, and it can really ruin a habitat. =)
Going to college and passing all your classes
To solve the problem it is necessary to use the concepts of Orbital Speed considering its density, and its angular displacement.
In general terms the Orbital speed is described as,

PART A) If the orbital speed of a star in this galaxy is constant at any radius, then,




PART B) This time we have
, where
is the angular velocity (constant at this case)




PART C) If the total mass interior to any radius r is a constant,




F = normal force by each board on each side
W = weight of the board in between acting in down direction = 95.5 N
f = frictional force in upward direction by each board
= coefficient of friction = 0.663
Using equilibrium of force in Upward direction
f + f = W
f = W/2
f = 95.5/2 = 47.75 N
frictional force is given as
f =
F
47.75 = (0.663) F
F = 72.02 N
Because solar panels are man made so they can shut down, not move, break, etc...? Don’t judge me, it’s just a guess.