Huang is glad he is part of a union. His cousin Kai was recently complaining about his manufacturing job. Kai said he had been written up three times for reporting to work late, but several of his co$-$workers show up later than he does and haven$$t been disciplined. A union at Kai$$s company would help in which area?

a$.$ increased job security

b$.$ improved work rules and working conditions

c$.$ power through solidarity

d$.$ defined grievance procedures