The correct answer will be- " If sally feels hungry, then she eats a snack".
Explanation:
A scientific hypothesis is a predicted statement proposed which explains the natural event to a limited extent. A hypothesis is based on the previous research work so is considered as the educated guess.
A hypothesis is designed in a way that it can be proved or disproved through the experiment so it should contain the variables which could be tested.
In the given question the proposed hypothesis will be-" If sally feels hungry, then she eats a snack" which shows the variables which can be tested.
Isn't it the cell membrane? The cell membrane controls what goes in and out of the cell using active and passive transport. Osmosis being a part of passive transport.