Which of the four plans of St. Peter's Basilica is represented in the image below? a
Old Saint Peter's Basilica
b
Bramante's plan
C
Michelangelo's plan
d
Maderno's plan

d. Maderno’s plan

Explanation:

This is the final plan of the  St. Peter’s Basilica, the plan of Carlo Maderno, who continued the plans of Michelangelo's plans by adding a nave and a narthex.

Bramante's plan was basically a square, roughly representing the top half of the image provided in the question.

It was modified by Michelangelo who added a section, then extended once more by Maderno who gave it this aspect.

The basilica was finished in 1626, 120 years after the construction began.

homophonic or a tonal