What are the three ways in which unions decrease productivity? $($Select all that apply.$)$

Multiple select question.

Unions promote the voice system in communicating to management how well it is doing.

The contract with the union limits the amount and type of work an employee can do$.$

Strikes and slowdowns cause lost production.

Union contracts limit employers to dealing with individual problems rather than collective issues.

The union pay advantage causes employers to use less labor and more capital per worker, which reduces efficiency.