When is the best time to create a research plan? once you have decided on a research question
after you have started taking notes on what you find
whenever you encounter a new and useful source
before you decide on a research question

onto a large boat, and mark the water level that the boat sinks to. then, take the elephant out and put a bunch of marked weights onto the boat until it reaches the same water level. add up the masses of the weights to get the weight of the elephant.

answer: c

explanation: