Final answer:
Romantic sentimentalism in ethical subjectivism emphasizes individual feelings and subjectivity, rejecting the influence of emotions on ethics and promoting individuality.
Step-by-step explanation:
The roots of ethical subjectivism in romantic sentimentalism emphasize the importance of individual feelings and subjectivity. Romanticism, as a movement of the arts, focused on inward action in the mind and the scrutiny of feelings. It celebrated the power of the imagination and individuality, rejecting the influence of emotions on ethics and promoting the idea that personal experiences and emotions should guide ethical decision-making.