Read this excerpt from Leah Missbach Day’s foreword to Wheels of Change. Freedom comes in many forms. For Mary Lewanika, a bicycle provides freedom from social oppression. A bicycle can cultivate independence. In Wheels of Change, Sue Macy quotes Ellen B. Parkhurst in Washington's Evening Times, "A girl who rides a wheel is lifted out of herself and her surroundings." That was true in 1896, and incredibly, it remains true in places around the world today.

The key word from the passage that emphasizes the central idea is “
✔ freedom
THE ANSWER IS FREEDOM. USING FOR LATER REFERENCE

Syllable added to a root word to change its meaning : affixan independent word--example run,walk,book : free morphemeaffix that gives grammatical meaning such as tense or number : inflectiona word part that must attach to a word in order to be usable : bound morphemedegree of comparison formed by adding -er or more to an adjective : comparativedegree of comparison formed by adding -est or most to an adjective : superlativeaffix added to the beginning of a word : prefixaffix added to the end of a word : suffixroot word of lovable : lovetwo roots used together to form one word : combining form