Refer to the input text as context and select the correct relationship between 'Glencore' and 'mining' from the available options.
Options: distributed by, developer, industry, distribution format

The FTSE 100 index drew support from gains in mining companies as the price of copper (CMCU3) rebounded, although an 8 percent drop in Glencore (GLEN.L) shares demonstrated continued volatility.
industry