Answer:
"She deliberately sought discarded items (she called them "found materials") such as pieces of wood, tin cans, and pieces of items out of trash cans" → provides evidence in support of the author's thesis.
"Sky Cathedral, one of Nevelson's most well-known sculptures consists of 38 boxes of varying sizes" → provides a specific example in support of the author's thesis.
"This saying was true for Louise Nevelson, one of the world's most celebrated sculptural artists" → introduces the author's thesis.
Explanation:
I have been able to match each sentence with the statement which explains how it develops the author's thesis.
The author's thesis actually reveals how unique Nevelson's sculpture was among others in her time. It shows the how she approached sculpture from a different and unique way.
The first sentence in the given answer actually reveals an evidence that supports the author's thesis. It gives evidence of how different she approached sculpture - by using discarded items. The second sentence provides a specific example in support of the author's thesis. This gives an example of Nevelson's unique work.
The third sentence actually introduces the author's thesis.
