TASK DEFINITION: You are given a question or fill-in-the-blank question, two answer options (Option1 and Option2) and an Explanation. Your task is to find the correct answer (return the string of the correct option, not option1/2) for the given question from the given options and using explanation.
PROBLEM: Question: Compared to an item with few carbon atoms an item with many carbon atoms will boil
Option1: faster
Option2: slower
Explanation: Alkanes with more carbon atoms have higher boiling and melting points, so some of them are solids at room temperature.

SOLUTION: slower

PROBLEM: Question: A chemist compared two substances in the lab. Which substance will have a higher concentration of hydrogen ions?
Option1: the substance with the higher pH
Option2: the substance with the lower pH
Explanation: The lower the pH value is, the greater is the concentration of hydrogen ions and the stronger the acid.

SOLUTION: the substance with the lower pH

PROBLEM: Question: Chris sees a particle with low energy. Chris knows it has not a lot of energy because it vibrates
Option1: weakly
Option2: powerfully
Explanation: The more energy the particles in matter have, the faster and more strongly they vibrate.

SOLUTION:
weakly