Answer:
The good design would involve positioning the experimental lime bean sprouts in different orientations in respect to the Earth.
Step-by-step explanation:
Geotropism refers to growth of parts of plants as a result of the force of gravity.
In the given question, Caroline wants to design an experiment to determine the effects of geotropism on the roots of lima bean sprouts.
For this, she takes a control group and an experimental group.
So, the good design would involve positioning the experimental lime bean sprouts in different orientations in respect to the Earth.