Final answer:
Hannah and Becky's unit rates cannot be compared without specific information. Therefore, the correct answer is D) It's impossible to determine from the information given.
Step-by-step explanation:
To compare Hannah and Becky's unit rates, we need to have information about a specific activity or task that they are performing.
Without this information, it is impossible to determine their unit rates.
Therefore, the correct answer is D) It's impossible to determine from the information given.