Final answer:
Purdah refers to the seclusion or veiling of women, which is a social and cultural practice in some Muslim and Hindu communities. Sikhism, under the guidance of Gurus like Amardas Ji, opposed such practices and advocated for gender equality.
Step-by-step explanation:
Guru Amardas Ji opposed the practice of Purdah, which is B) Seclusion or veiling of women. Purdah is a cultural and religious practice found in some Muslim and Hindu societies that involves the seclusion of women from public observation by means of physical partitions or the wearing of clothing that covers them completely. This practice reflects the patriarchal values of some traditional societies, where women's freedom and visibility in public life are considerably restricted.
Sikhism, which was founded by Guru Nanak and later developed by successive Gurus, including Guru Amardas Ji, rejects such practices. It emphasizes the equality of all individuals regardless of gender, caste, or religion, promoting a society where everyone has the right to participate fully without being hidden away through practices like Purdah. Sikh Gurus advocated for the empowerment of all members within their communities, encouraging personal meditation on God rather than the following hardbound social customs.