You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).

Q: Paragraph: By using multiple stages, empty fuel containers could drop away. This reduced the mass of the rocket so that it could fly higher.
 Question: Ray was traveling in rocket leaving orbit. He ejects the empty fuel containers so the ship can fly 
 Choices: A)higher 
B)lower

A: higher
****
Q: Paragraph: In electromagnetic waves with higher frequencies, photons have more energy.
 Question: Don is looking at electromagnetic waves, and sees that the one's he observing have higher frequencies. Don is able to know then that the photons have energy that is 
 Choices: A)higher 
B)lower

A: higher
****
Q: Paragraph: Bigger atoms have more electrons.
 Question: Mona is comparing the size of two atoms in her science lab. If she notices that one atom is smaller then the other, what does that tell her about the number of electrons it has? 
 Choices: A)more 
B)less

A:
less
****