Read the following hypothesis about why a chicken bone becomes bendy after being soaked in vinegar: the bone can bend because the acid in the vinegar has removed the calcium that made it hard. what evidence would support this hypothesis? a. observing that a bone placed in a freezer becomes more rigid b. observing that a bone placed in a beaker of acid becomes bendy c. observing that a bone placed in a beaker of water becomes bendy d. observing that a bone placed in a mixture of baking soda and water becomes more rigid