ANSWER: c. The architect used vertical lines to emphasize the strength and permanence of the building and horizontal caps on the columns to keep the façade from escaping into the heavens and to help contain it as a piece of art.
EXPLANATION: Saint Peter's Basilica is the largest church in the world designed principally by Donato Bramante, Michelangelo, Carlo Maderno and Gian Lorenzo Bernini. It is one of the notable works of Renaissance Architecture. It is also said to be one of the holiest catholic shrines.