Problem: Ken is a microbiologist. He got two samples of yeasts, yeast A and yeast B, from two different businesses. Yeast A is used in a bakery, and yeast B is used in a brewery. He has to decide the characteristics of each yeast sample for further study. Interestingly, despite all his curiosity, Ken doesn't like any yeast to be around him. If Ken wants a dough sample to expand, which yeast should he use, yeast A or yeast B?

A: yeast A
Problem: Given the question: Two friends were involved in a car crash. they both survived, but Mike had a serious brain injury. Vince was OK, he didn't experience any significant injuries. Which friend experienced problems with mental abilities?
++++++++++++++++++++++++++++++++
The answer is:
Mike
input question: Two botanists had different interests, Mike studied only trees and flowers, while Chris was fascinated with studying fungi. Which botanist learned more about parasitic fungi????
output answer: Chris
High lake had a lot of fresh and salt water mixing, therefore presented layers of stratified water.The water was poor in nutrients.Low lake had no such problems and it was a very abundant and prolific fishing spot. Which lake had less anoxia?
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Answer: Low lake
Q: Harry and Kim studied ancient humans. Kim studied a 15000 year-old settlement, before humans invented agriculture, while Harry studied a 5000 year-old village. Which student studied about a village that had a lower birth rate?
A: Kim
[Q]: Mike lives in a cold mid-western city, where there is not much predator prey interaction. Mike noticed that in his city some squirrels have darker coat, while others have lighter coat. He also knew that darker coats are more suitable in cold environment with less predator prey interaction. He started thinking why the squirrels developed different coat colors. Which coat would most likely become more common, darker or lighter?
****
[A]:
darker