Read the following excerpt from the article "vision, voice and the power of creation: an author speaks out," by t. a. barron, and answer the question that follows:

another way to tap the power of imagination is through place. my own background as a writer is rooted in nature, having grown up reading henry david thoreau, rachel carson, and john muir long before i ever dipped into madeleine l'engle, lloyd alexander, ursula le guin, e. b. white, or j. r.r. tolkien. my early writings were really nature journals; at nine, i wrote a complete biography—of a tree. (it was a once-majestic chestnut tree not far from my home.) so it should come as no surprise that i view place as much more than just a setting for a story. it is, in truth, another form of character, no less alive and complex, mysterious and contradictory, than the richest character in human form.

what does the author imply when he writes, "another way to tap the power of imagination is through place"?

the power of imagination is only found in place.
there are many ways to tap the power of imagination.
there are other ways to use place.
the best way to tap the power of imagination is through place.