Which of these did not contribute to growing cleavage between Hindus and Muslims?

All the choices provided historically acted as catalysts for communal polarization between Hindus and Muslims in late 19th and early 20th-century colonial India. The Urdu-Nagri controversy (1867 onwards) divided communities along linguistic lines; the Cow-Protection movement caused severe riots; the Shivaji Festival (popularized by Tilak) alienated many Muslims; and playing music near mosques during processions became a recurring trigger for communal friction in the 1920s. Since all options contributed, this question traditionally features an administrative error or accepts a specific textbook key; under standard historical consensus, all are major contributing factors.