What unusual aspect characterized the initial plans for the Cathedral of St. Barbara?

What unusual aspect characterized the initial plans for the Cathedral of St. Barbara?

A It was to be built on a floating platform.
B It was intended to have no towers.
C It was envisioned to be twice its current size.

Fact: Initial plans for the Cathedral aimed for a much grander design, incorporating an ambitious scale that ultimately was not achieved due to the declining silver mines.

Correct Answer: It was envisioned to be twice its current size