Which factor helped spread Islam?

Options:
People were looking for new beliefs
Merchants carried the faith to new lands
Rulers required residents to convert
People found new ideas easier to follow

All of the options listed helped spread Islam, but the most significant factor was likely merchants carrying the faith to new lands. The expansion of trade networks during the Islamic Golden Age allowed for the dissemination of Islamic ideas and teachings to different regions and cultures. Additionally, people seeking new beliefs and finding new ideas easier to follow played a role in the spread of Islam, along with some rulers requiring their residents to convert.