Take context from the input text and decide on the accurate relationship between 'Bonhams' and 'auction' from the options provided.
Options: parent organization, developer, industry, product/material produced

The 4 dollar (USD) Coiled Hair Stella, which was struck in the U.S. but never released for circulation, brought an astonishing 2,574,000 dollars (USD) at auction by Bonhams in Los Angeles on... on.aol.com
industry