Who was Helena Armstrong and how did she Champion women right and workers right?

Helen Armstrong was a tenacious labour activist and president of the local chapter of the Women’s Labour League. The Armstrongs were an integral part of the six-week Winnipeg General Strike, with Helen organizing female workers, picketing, managing a strikers’ soup kitchen, signing up new union members, speaking and marching.

Explanation:

To cause a source to be biased means that it is influenced by your opinion or another factor that is not factual. Bias can take away from the credibility because it is not completely true, as a source should be.