Task: Question Answering
Input (English): Paragraph: With higher levels of dissolved carbon dioxide in ocean water, the water becomes more acidic.
 Question: Bob is testing samples of ocean water from different places. The sample of water from off India's coast has less dissolved carbon dioxide, than the sample of water from off the United States' coast. Therefore, the water from _____ coast is more acidic. 
 Choices: A)India's 
B)United States'
Output (English): United States'