What will happen to an object at rest if no unbalanced forces act on it according to Newton’s first law A. it will start moving
B. it will remain at rest
C. it will experience a force
D. it will accelerate

That big glowy thing in the sky is called the sun

I'm having some difficulty seeing the diagram clearly.but the question says there's a net inward force on the object.so we know right away,  from newton's 2nd law of motion, thatthat baby is accelerating.  it doesn't even matter which way thenet force is pointing.  if there's any net force, then either theobject's speed or else its direction must be changing.