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: The reason we rarely see fossils that are made out of tissue is because tissue is _____ than bone 
 Option1: weaker 
 Option2: stronger 
 Explanation: Hard shells fossilize more readily than soft bodied organisms, as they are better at resisting decay, take significantly longer to break down, and have a greater chance of surviving burial under layers of sediment.

SOLUTION: weaker

PROBLEM: Question: John was looking at a diagram of an electrical system. He observed that it was less difficult for electronics to move when the wire was 
 Option1: Thicker 
 Option2: Thinner 
 Explanation: A thinner wire is more difficult for electrons to move through than a thicker wire.

SOLUTION: Thicker

PROBLEM: Question: Dana washes her hands a lot, so her bacteria has mutated to help to resist antibiotics. As that bacteria decreases in numbers, the mutation becomes 
 Option1: common 
 Option2: rare 
 Explanation: Bacteria with a mutation the helps resist antibiotics increase in numbers, so the mutation becomes more common.

SOLUTION:
rare