Answer:
A. They would support her claim of a new theory because she supported it with data.
Explanation:
A scientific study is done to confirm the hypothesis which is based on scientific data. Scientific data is defined as factual information collected by doing experiments or methods for studying a specific purpose.
As shown in the question, a girl publishes her work and results based on scientific study and scientific data, so she would get support from other scientists on her claim of a new theory because she supported it with data. A new theory based on scientific data is more accurate and true.
Hence, the correct answer is "A."