The National Labor Relations Act Protects Employees in Their Right

The National Labor Relations Act protects employees in their right to engage in concerted activities,which:

A) excludes the discussion of unionization among employees.
B) includes attempts by one employee to solicit union support from another employee.
C) excludes attempts by a single employee to unionize when no other employee joins him or her.
D) includes acts of vandalism by employees against an employer.