You will be presented with a citation segment from the section of a research paper. Classify the intent behind this citation by choosing from one of the following categories:

- Method: Cites the paper for its methodology or procedure.
- Background: Cites the paper to provide background information.
- Result: Cites the paper for its findings or results.

Your answer should be a single word from the following list of options: ["Method", "Background", "Result"]. Do not include any other text in your response.

Citation sentence:

…squares of 20 cm 9 20 cm (sampling unit, indicated as PT-A, PT-C and PT-E) were selected and
3–5 shoots per unit were collected for a total of 35 shoots, according to the sampling design of a previous study (Spagnuolo et al. 2007), so that we could test the sitedependence of genetic structure.
Method