- AIt uses the undefined word 'part', so point is now taken as an undefined term
- BIt is geometrically false
- CPoints actually have two dimensions
- DIt contradicts the parallel postulate
Step-by-Step Solution
Euclid's definition relies on undefined notions like 'part', leading to circularity. Modern geometry treats point, line and plane as undefined (primitive) terms.
Answer: A) It uses the undefined word 'part', so point is now taken as an undefined term