According to professor tilson's lecture on the renaissance, the was the ecclesiastical masterpiece of architecture by andrea palladio commissioned by the venetian senate in 1576-1592 in fulfillment of a vow made on the deliverance of the city from the devastating plague of 1575-1576.

The correct answer is Il Redentore

The full name of the church is Chiesa del Santissimo Redentore which basically means Church of the Most Holy Redeemer in English. The church was built after the city suffered hugely from the plague since around 30% of the population died in it, around 46 000 people. Since then, the church has been home to numerous works of art and is a common place for tourists to visit.