c. They worked closely with the abbot to design and build a church.
Explanation:
Bishops, abbots, princes or barons of the Gothic age got ready to put up a notable building, their first care was to select themaster builder.
"Master builders moved about freely from place to place [...] to obtain commissions. When a new construction had been determined upon, the bishop or chapter or abbot, as the case might be, let the fact be known"
Reference: The Masonic Trowel (2019). The Gothic Builders. [online]
