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).

[EX 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: David is getting ready to fly into space on a rocket. As the rocket shoots upwards, part of the mass attaches, allowing the rocket to go
Choices: A)higher
B)lower
[EX A]: lower

[EX Q]: Paragraph: Larger alkenes have lower boiling and melting points.
Question: While in the lab, Sharon and Joe were testing alkenes; Sharon's alkenes were much smaller than Joe's. The melting point of Sharon's alkenes will be _____ than Joe's.
Choices: A)lower
B)higher
[EX A]: higher

[EX Q]: Paragraph: The forest habitat of elephants has also decreased in size due to humans moving in, so the numbers of the elephants have decreased.
Question: The elephants were moved to a reservation where they could thrive, since their habitat in the wild had expanded too far. The elephant numbers were now
Choices: A)larger
B)smaller
[EX A]:
larger