In which type of Baroque composition does a soloist or a small group of instruments interacts with a larger orchestra?

I think its concerto??

This example of early christian art contains christian symbolism that was unrecognizable by pagans. what is the title of this example of art? a.the rabbula gospelsb.sarcophagus of the church of santa maria antiquac.the sarcophagus of the good shepherdd.the baptism of the disciples