Many workers/belong/trade unions/provide/sup...

Câu hỏi: Many workers/belong/trade unions/provide/support/ workers/disputes employers.

A. Many workers belong to trade unions, which provide support for workers in disputes with employers.

B. Many workers belong to trade unions, that provide support for workers in disputes with employers.

C. Many workers belong to trade unions, who provide support for workers in disputes with employers.

D. Many workers belong to trade unions whose provide support for workers in disputes with employers.