Objective: To bake biscuits with enough space on the baking sheet for them to expand as they cook.

Which of the following solutions is more sound in terms of naive physics reasoning?

Options are: --Place them on a baking sheet about 6 inches apart from each other. --Place them on a baking sheet about 2 inches apart from each other.
Place them on a baking sheet about 2 inches apart from each other.