Complex sentence: Their duties include carrying out tasks assigned to them by superiors such as preaching, recruiting, teaching in mosques as well as following a rigorous curriculum of study, memorizing sections of the Quran and studying the teachings of Hasan Al Banna, the founder of the Brotherhood.
Split into simpler sentences: Their duties include carrying out tasks such as preaching, recruiting, teaching in mosques assigned to them by superiors. THey also follow a "rigorous curriculum of study", memorizing sections of the Quran and studying the teachings of Hasan Al Banna, the founder of the Brotherhood.