Which Statement About a Well-Maintained Yard Best Conveys the General

Which statement about a well-maintained yard best conveys the general nature of externalities

A) A maintained yard conveys a positive externality because it increases the home's market value.
B) A maintained yard conveys a negative externality because it increases the property tax liability of the owner.
C) A maintained yard conveys a negative externality because it makes other property owners in the neighbourhood feel like their homes are less valuable.
D) A maintained yard conveys a positive externality because it increases the value of adjacent properties in the neighbourhood.