What is listed as a Swiss heritage site of national significance in Orselina?

A. The Sacro Monte with the church of San Rocco and the convent and church of Della Madonna del Sasso e Museo
B. The Sacro Monte with the church of Dell’Annunziata and the convent and church of Della Madonna del Sasso e Museo
C. The Sacro Monte with the church of San Pietro and the convent and church of Della Madonna del Sasso e Museo
D. The Sacro Monte with the church of San Giovanni and the convent and church of Della Madonna del Sasso e Museo
Answer: 