Answer:
happening or carried on according to chance rather than design or inherent nature
Explanation:
dictionary.com definition
B The minerals in the rocks turn the walls different colors.
C Sunlight makes the walls look mostly red and green.
D The walls are different colors in the summer and the winter.
A. Lizabeth treats Joey like he's invisible and ignores him.
B. Lizabeth thinks Joey acts like a baby and he embarrasses her.
C. Lizabeth thinks Joey is inferior but they are close companions.
D. Lizabeth treats Joey like he's an equal and they are inseparable.