Answer:
An objective statement is the patient presented with a chipped front tooth.
Explanation:
Objectivity is based on the appreciation of the characteristics of an object according to reality, without being subject to individual interpretation. It is the opposite of subjective.
A chipped front tooth in a patient is a characteristic that is objective, because it will be interpreted by anyone for what it really is.
Regarding the other options:
Options a, b and c are subjective statements, which are born from the personal appreciation of one or several individuals, and which do not necessarily agree with reality.