Step-by-step explanation:
Mercy Otis Warren played a significant role in colonial politics during the 1760s and 1770s primarily through her writing and political activism. While she did not serve as a member of the Pennsylvania Assembly or bring lawsuits against British policy in the colonies, the other two options are accurate.
1. She wrote poems and stories to promote Revolutionary causes: Mercy Otis Warren was a prolific writer and used her literary skills to advocate for the American Revolution. She wrote numerous plays, poems, and political satires that criticized British policies and promoted the cause of independence. Her works, such as the play "The Adulateur" and the epic poem "The Sack of Rome," were widely circulated and helped to shape public opinion.
2. She argued for more educational opportunities for girls: Mercy Otis Warren was an advocate for women's education and believed in the importance of educating girls. She argued that women should receive a well-rounded education that included subjects traditionally reserved for boys, such as history, politics, and philosophy. Warren believed that educated women would be better equipped to participate in political discussions and contribute to the development of the new nation.
In summary, Mercy Otis Warren participated in colonial politics during the 1760s and 1770s through her writings, particularly by using poems and stories to promote Revolutionary causes, and by advocating for more educational opportunities for girls.