How is a hash created on file Apr.Txt in an object-level deduplication?

Refer to the exhibit.

How is a hash created on file Apr.Txt in an object-level deduplication?
A . from content with variable-length
B . from the metadata of the file
C . from the content of the file
D . from content with fixed-length

Answer: B

Explanation:

Reference: https://www.delltechnologies.com/asset/he-il/products/storage/industry-market/h17072-data-reduction-with-dell-emc-powermax.pdf