An 8-year old boy has lost tooth 11. The lateral incisors have partially erupted. You would expect that tooth 12 will erupt

encroaching upon the central incisor space. AND and the left central incisor will encroach upon the space.

without encroaching upon the space.

encroaching upon the central incisor space.

and the left central incisor will encroach upon the space.