Glencore (Xetra: A1JAGV - news ) and Anglo American (LSE: AAL.L - news ) were the top fallers after Investec (LSE: INVP.L - news ) said the challenging environment for the sector calls into question the equity value of the mining companies.
What is the relationship between 'Glencore' and 'mining' in the context of the input sentence.
Options: subsidiary, founded by, industry, business division