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.

Q: Question: Scientists discovered a region where there was a much larger amount of greenhouse gases getting caught in the atmosphere. Compared to other regions, this region's atmosphere will have a 
 Option1: higher temperature 
 Option2: lower temperature 
 Explanation: More greenhouse gases trap more heat and warm the atmosphere.

A: higher temperature
****
Q: 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.

A: weaker
****
Q: Question: Karly is studying two rivers and how they are affecting the rock around them. If the 2nd river she looks at is half as big as the first river she is studying, then Karly would expect to see _____ erosion caused by the 2nd river. 
 Option1: more 
 Option2: less 
 Explanation: The bigger the waves are and the more sediment they carry, the more erosion they cause.

A:
less
****