When you squeeze the rubber bulb of a perfume atomizer how do you change the air pressure at the top of the tube

i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.

3. dark matter

empty space could also be a simple vacuum