For What Reason Did Monasticism Take Rapid Hold in Northern

For what reason did monasticism take rapid hold in northern Europe?

A) Monastic communities represented an opportunity to mediate between believers and God.
B) Warrior monks helped conquer land from Germanic pagans.
C) The charitable works of monks and nuns among the urban poor brought popular support to monastic life.
D) The monastic lifestyle offered similarities between the lives of Christian clerics and those of Jewish and Muslim religious leaders.