The changes to boston's harbor and land area are examples of the ability of to manipulate and change the
a.
culture . . environment
b.
environment . . subculture
c.
popular culture . . subculture
d.
architecture . . popular culture

A. culture . . . environment

Explanation:

Boston, including its harbor and the land area surrounding it, have experienced lot of changes over the course of the past few centuries. The people of course have been responsible for these changes, as they have been the ones performing the actions that led to the changes, based on their culture, perceptions, and needs.

Every culture has its own unique characteristics and trademark features, and that is almost always seen in the manner in which the environment is changed by the humans. The culture pretty much dictates what will be built, how it will be built, the organization, the aesthetics, the meaning. Simply said, the culture is a key component of the changes inflicted on the environment by the humans.