The action in the excerpt takes place around a wedding ring, which is a traditional symbol of a formalized bond between partners.
This explanation best captures the significance of the excerpt as it highlights the woman's rejection of her marriage and the societal expectations that come with it. By throwing the wedding ring and attempting to crush it, she is symbolically challenging the constraints of her relationship and expressing her desire for independence, which aligns with the novel's themes of self-discovery and breaking free from societal norms.